imac won't turn on

How to fix imac won’t turn on?

MacBook is the Mac laptop and has several versions MacBook Pro, MacBook Air, MacBook rarely during the life of the MacBook can cause some problem and one of the most serious is that it does not start. In the event that the imac won’t turn on, you must follow the following steps before taking it to an official workshop to help you fix it.

Why imac won’t turn on?

imac won't turn on

 

Check that the power adapter is connected to the MacBook and to an electrical outlet. Use only the 60W MagSafe power adapter supplied with your MacBook Pro.

If the power adapter stops charging the battery and the MagSafe connector light does not come on when connecting the power cord, unplug the power cord from the electrical outlet and plug it in again, or try plugging it into another outlet current.

If the previous two steps did not start the MacBook, check if the battery needs to be recharged. Press the small button on the left side of the computer. You will see one to eight indicator lights showing the charge level. If only one indicator is lit, plug in the power adapter to charge the MacBook’s battery to get it to start.
If the startup problem persists, close all open documents and exit all applications. Return the computer to the initial state or factory state (but keeping its files) by pressing the left Shift key, the left key (alt), the left control key, and the power button (0) simultaneously for five seconds until the restart the MacBook computer.
If you recently installed additional memory, make sure that it has been installed correctly and that it is compatible with your computer. Check if the computer boots after removing the installed memory and reinstalling the old one

Press the power button (®) and immediately then hold down the Command (x), Option, P and R keys simultaneously until you hear the start-up sound a second time to reset the Parameter RAM (PRAM).

If you still can’t start your MacBook, see “More information, service, and support where I buy my MacBook.
Take the time to do each of these steps and try to start up your MacBook.If your screen goes black or your MacBook Pro freezes, try restarting your MacBook.hope, you have solved imac won’t turn on issue.

connect alexa to tv

How to connect alexa to tv with voice command? The easiest method

Alexa is the voice assistant created by Amazon, capable of offering a strong ecosystem behind it. Today we are talking about how to connect Alexa to TV to control it with your voice. If you have a smartTV compatible with voice assistants, usually the association between them and our Alexa device is very simple but varies from manufacturer to manufacturer.

How to connect Alexa to the TV

If your TV is compatible with Alexa, you need to use the Samsung Smart Things app (available for Android and iOS ) to connect. The handy app allows you to create a free account with which to control your television. Once you have the account, you can set it up on Alexa. To do this, you need to:

  • Open the Amazon Alexa app (available for Android and iOS );
  • Press the menu button (it is at the bottom right of the interface, three parallel white segments characterize it);
  • Then choose the item” Skills and Games “;
  • Inside the screen, press the magnifying glass icon at the top;
  • Then search for the “Samsung SmartThings” skill, select it and press the “Enable use “button;
  • Then log in with your Samsung account and confirm.
  • At this point, you can switch to enabling the TV again in the Alexa app. To do this, you will have to go back to the menu and select the item” Add device,” then select “TV,” and finally, “Samsung. ” The procedure is guided. At the end you can give commands directly to your TV.

How to connect Alexa to Sony TV

Bravia models enabled for voice control compatible with Alexa (here is an official list) have a special app available. To reach it, make sure your TV is connected to the Internet, then from the remote control, press the “Home” button and reach the “App” section. Then select the “Configuring TV control with Amazon Alexa” icon. Follow the procedure and select your Google account associated with the TV during the first configuration. Then give the TV a name that is easy to pronounce and press the “Finish” button.

We can follow the first 5 points of the previous paragraph and, at the time of the search, enter “Sony’s Android TV.” Once identified, click on “Enable use “. The configuration will start, which is simple and guided. You simply need to enter the Google account associated with the TV.

How to connect Alexa to LG TV

The procedure on LG smart TVs is slightly more complex and is only available on models with at least the WebOS 4.5 operating system version, starting with the UM7100 series. Alexa works only with the remote pointer control with a microphone. If you want to use the function, you will have to buy it.

With the remote in hand, long press on the “Prime Video “button, do not release it until the automatic installation of the Alexa app begins. When the installation is complete, a screen will open with a code, which must be entered on the following page after logging in with your account.

Then tap to configure the TV to control by voice, just:

  • Press the button with the gear icon on the remote control;
  • In the “Settings, “go to “Connection” then on “Connection to voice control devices”;
  • Then select the Amazon Alexa item;
  • The procedure will continue allowing you to enter your Amazon account;
  • Finally, you will be asked to indicate a name with which the TV will be called and the procedure can be concluded.

If you want to control the TV via the Alexa app or an Echo device (connected to the same WiFi network as the TV), follow the 5 points in the paragraph dedicated to Samsung TVs. This time, install the “LG SmartThinQ” Skill and follow the indicated procedure.

How to connect Alexa to Panasonic, Hisense and TCL TV

For these televisions, the procedure is standard. You have to download the respective apps to associate your television and register your account. Then you can download the appropriate Skill on Alexa and connect the device by logging in with the registered account credentials.

If your TV is not compatible, don’t worry, there are other ways to configure your TV to interact with Alexa as explained in the next paragraph.

How to connect a non-Alexa certified TV

In this circumstance, you can use a Fire Stick TV or a smart HUB IR. The Fire TV Stick is a handy HDMI dongle (it’s nothing more than an adapter that connects to the HDMI port) that allows you to make a classic TV smart (we have already talked about it in this article ).

While a smart HUB IR is a device that emits an infrared signal like a universal remote control. We can control this through an Echo Alexa device, TV, air conditioners, decoder, stereo and everything that works through a classic infrared remote control.

Alexa commands are dedicated to controlling the TV and playback

After having configured your SmartTV or installed a Smart HUB IR, you can use the following commands:

Alexa, turn on / off (TV name);
Alexa, put the channel number (for example 222) on (TV name, to indicate on which TV if you have configured more than one);
Alexa, go to the next channel;
Alexa, previous/next channel;
Alexa, turn the volume up / down on (TV name);
Alexa, mute/unmute audio on (TV name);
Alexa mutes (TV name);
Alexa, turn on / off (TV name).

how to make your home workplace ergonomic

Buying guide on how to make your home workplace ergonomic

On paper, to work at home we can manage with a computer and an internet connection. But the practice reveals an uncomfortable reality: that of spending eight hours in bad posture. In this sense, it is necessary to design an area to turn it into our workspace, respect breaks, stretch, and maintain a neutral posture.

Here you can find a large number of shopping guides for teleworking, but this one is different: it is an ergonomics and postural configuration guide for your workplace.

For the preparation of this ergonomics and postural configuration guide, we have consulted the physiotherapist specializing in posturology and ergonomics specialist.

A chair for work: the more adjustable, the better

The starting point is that we are not all the same. The specialist explains that “Each person, due to a series of different factors, has their unique posture. Some have a flat back, a hunched back, or a combination of both and consequently a different head position. There are taller and shorter, leaner, and bigger. ”

posture in front of the computer

In this sense, there is no universal chair, so when choosing a chair to work with, the most important thing is that it is adaptable.

At the ergonomic level, a work chair must meet the following criteria:

  • With wheels, to facilitate movements along with the office table, so that forced positions are avoided when moving it.
  • That it is adjustable in height so that the feet are completely supported on the floor and the hips are slightly above the knee, at an angle of 90º – 90º. The objective? That the pelvis is as neutral as possible.
  • With armrests and that these are adjustable in height, thus avoiding forced positions so that the shoulders do not rise beyond their usual position.
  • With or without lumbar support? The specialist recommends a slight prominence that allows this support but allows adjustment in anteroposterior inclination.
  • That the seat depth is adjustable
  • The seat must be stable, without leaning from one side to the other according to our body weight, since we all tend to lean more to one side or the other and this type of seat could cause back pain by generating scoliotic positions.
  • That the fabric of the chair is breathable, hypoallergenic, and does not slip.

Some employer insists that “if we are going to spend 8 hours in the office sitting down, it is best to get up and stretch (neck, back, arms and legs) at least every 2 hours to avoid numbness in the legs due to lack of circulation blood pressure and muscle overload. ”

A work table “at the height” of your chair

Since we are not all the same, ergonomically the most important thing when choosing a table to work with is that it is adaptable in height.

We are not all the same height, so many times we find ourselves in situations in which the chair collides with the edge of the table, which prevents us from placing ourselves at an adequate distance from the computer screen. As a specialist explains:

“I think it is important to first find a table that fits the chair we have at home. That is, we must position the chair properly, and from there take measures so that the table does not give us problems.”

In the previous point we reviewed the ideal posture in a work chair:

  • With the knee angle at 90 degrees, so that the heel is just below the knee.
  • With the chair at a height that allows our knee to be in line with our hips or the hips to be slightly above the knee. In this way, we will avoid muscular tensions modifying the position of the pelvis.
  • If you have adjustable armrests, it is advisable to position them so that the shoulders do not rise beyond their usual position.

After placing the chair in this position, we will look for a table in which the height allows the armrests to enter without problem under the table so that we place ourselves at a good distance from the computer screen.

Another design feature that has an impact on ergonomics is that they have a curvature on the edge from which we access so that the impact is softened by friction and wrist and forearm support.

From here, look for a table that fits in your workspace and allows you to place your equipment without narrowing. It is not ergonomics, but it will visually relieve you that it has cable trays and items to store your things such as shelves, drawers, or compartments.

A comfortable monitor for your eyes and your posture

The specialist begins with a recommendation for those whose work computer is a laptop: “The screens of these devices eventually end up causing many cervical problems by keeping the head in an inappropriate position for many hours a day.” So if this is your case, better bet on an external monitor for productivity.

What to take into account when buying a monitor in ergonomics? On the one hand, if we are already well-positioned in the chair and with the table at the appropriate height, the screen must have an adjustable base so that our eyes are in the middle of the screen.

And if the monitor convinces us but it is not adjustable, we can always buy a base or place it on a VESA mount, two solutions that also provide us with extra space to keep our office supplies in order.

The approximate distance between your eyes and the monitor is at least half a meter, about an arm’s length away. Although yes, the bigger the screen, you can put it further away.

The monitor must be placed at eye level, with a slight upward tilt of 10 – 20 degrees so that the distance from the panel to our eyeballs is approximately the same.

Regarding its characteristics, the quality of the screen and the brightness should allow you to see the content without problems without having to strain your eyes or bring your head closer to the screen.

In this usage scenario, it is advisable to opt for monitors with IPS or VA panels over TN due to their characteristics. Without going into details, IPS offers us better color, better viewing angles, and slower response time. And VA offers us a higher native contrast ratio. Both options are good for productivity, but most manufacturers opt for IPS

The size will depend on the resolution, a key factor if we work with high volumes of information. If our budget is tight, the 24-inch Full HD offers good performance. For a little more, we can aspire to 27 inches and QHD resolutions. Starting at 32 inches, better go to 4K monitors.

What if I need more than one monitor? Here it depends on several factors. If the two are to be used at the same time with the same frequency, they must be placed next to each other so that they visually meet. In this sense, consider an ultrawide monitor and curved screens, to maximize ergonomics. If not, it will depend on how much you use one or the other and which eye is dominant.

A mouse to take care of the doll

The specialist explains that the most important thing in choosing a mouse from ergonomics is “the angle of wrist extension that it generates. Wrist extension puts the nerves of the carpal tunnel in a stretching position, especially to the median nerve, causing carpal tunnel syndrome and elbow problems such as epicondylitis or tennis elbow. ”

A mouse to take care of the doll

Thus, the idea is to look for mice that hardly generate wrist extensions, such as small bulky mice or vertical mice.

In a simplified way, vertical mice are those in which the hand is placed in a position to shake hands to say hello. The employer’s words, “they generate slight supination of the forearm, which would also prevent the median nerve from also suffering from compression against the table.”

Another option to minimize wrist movement is trackball-type mice. Although they can be horizontal – with a usual hand – wrist posture – the mouse itself remains stationary, having to move the ball to control the movement of the cursor. They also require less space. There are also mice shaped like a pen – eye, not stylus -, which considerably reduces wrist movements.

From here, we will look at other general characteristics for productivity, such as whether it is wired or wireless, the layout of the buttons, and if they are programmable their sensitivity and precision.

A keyboard that keeps us in a natural posture

When we type on a keyboard we make a series of unnatural movements. First, we position the forearms so that they are almost horizontal and parallel to the keyboard, bending the wrists up to reach the keys. And if the keyboard is wide, we will also turn this joint to reach all of them. Even the default position involves flexing the muscles in your shoulders and back. Ergonomically designed keyboards seek to minimize these twists and turns.

The wrist extension that was a concern when choosing a mouse and that causes carpal tunnel syndrome is once again appearing with keyboards. In this sense, the specialist recommends that they below in height to minimize their impact.

On the other hand, there are some keyboards with a rounded shape that allow the keys to be oriented slightly diagonally, in line with the forearms, reducing repetitive wrist movements when typing.

However, the main criterion to be followed should be the wrist angle and verify that during typing there is no compression at the level of the carpal tunnel.

There are unibody models and others divided into two pieces. The former is usually more affordable and require a shorter learning curve. However, the divided ones allow more customization. And this has its advantages.

An ergonomically ideal keyboard places all keys within fingertips without straining your fingers, bending your wrists, twisting your arms, or curving your shoulder blades. Since we are all different, with split keyboards, you can control the width and shape of the keyboard. If you frequently use the “far” number pad and have experienced discomfort, you may also be interested in purchasing it separately.

It is common for keyboards seeking greater ergonomics to include a wrist rest to keep the wrists and forearms less forced and in a comfortable position, something especially important if we are going to type for a long period.

Some ergonomic keyboards set the keys at different depths to accommodate the lengths of your fingers. Others go a step further and redistribute the keys. Although, usually, they follow the QWERTY layout, frequently used keys such as Control, Alt, or Windows / Mac vary their position.

Tenda Nova MW3

Tenda Nova MW3: The Economic and Complete WiFi Mesh system

There are several devices on the market to increase the coverage of the WiFi signal, but those equipped with WiFi Mesh technology certainly have an edge. Tenda Nova MW3 is a dual band WiFi system, equipped with three satellites capable of guaranteeing signal coverage of up to 300 m2. The installation of the device is very simple and allows to have a single SSID with a stable and constant connection throughout the house, avoiding the interruption points from one transmitter to another. Read our review to find out all about Nova MW3 Tent. Continue Reading

Logitech MX Keys

Logitech MX Keys: The essential keyboard

Do you remember Logitech Craft?  It is a keyboard launched a couple of years ago, which has the peculiarity of having a programmable wheel on top of the keyboard itself, which you can associate with various functions depending on the program used. So take this keyboard, deprive it to change the color a bit, and you will have MX Keys, a new model launched a few months ago, which is not exactly “new”. Continue Reading

Bose 700

Bose 700, ANC wireless headphones with augmented reality

It has been some time since the American firm Bose taught the world the second version of its successful wireless headphones with noise cancellation Bose QuietComfort 35 II. And it is now that a new model is finally called to take its place: The Bose 700. Apart from doing everything that is expected of them in principle, they also do things that you would never have imagined were possible. And these “smart headphones” allow us to easily access voice assistants, while answering calls thanks to a powerful and innovative microphone equipment. And if that was not enough, it includes the Bose AR augmented reality platform, which brings new and incredible experiences. Continue Reading

Hoverboards

The Best Hoverboards 2019

While this is good for smooth surfaces, hoverboard users may find that these smaller wheels will spin idly when they come off the ground on an uneven surface (like many of Britain’s pavements) and when the wheel regains contact with the ground, yes will move forward

This means that hoverboard users have to pedal slowly on uneven surfaces, even at walking pace, to make sure they remain balanced and safe.

There are other wheel sizes available, namely 8 inches and 10 inches.

However, AirWheel has a much larger wheel, with dimensions of around 11.6-14 inches, which should easily handle uneven surfaces, especially when compared to its counterpart.

FLY Plus hoverboard

The FLY Plus hoverboard available on hoverboards.co.uk is one of a new range of hoverboards now available in the UK that will not explode like those when the hoverboard hype peaked in 2015.

Why?

In terms of design, FLY Plus is one of the most attractive of all the hoverboards we’ve seen.

In terms of size, the FLY Plus measures 21.6 in x 7.3 in x 7.0 in with 6.5-inch wheels and a weight of 12 kg.

The most important question is, how does it work?

The wheels under the bonnet are powered by two 350 W Silent Drive motors, offering an almost * silent * experience.

These twin units provide a maximum speed of 12 km / h, or about 7 miles per hour, with about two hours of use before topping up is necessary.

If that’s not enough for you, the FLY Plus also offers a built-in Bluetooth speaker.

Xiaomi Ninebot Plus

Xiaomi’s Ninebot Plus is a bit different from the other hoverboards in our mopping, and with two 400W engines, it is rather the beast.

As with the others, here you bend forward and backward to push the device, reverse and to stop it, but to turn the corners you bend the “stick” mounted in the center with your knees.

At that point the Ninebot Plus feels much more stable than most hoverboards – partly due to having something extra to hold on to, and partly due to a pair of large 11 “non-slip tires that do a great job fitting small curbs and basing

The Ninebot Plus is able to handle wet surfaces, thanks to special grooves in the tires and a waterproof battery cover (IPX6).

This stick also has another function that allows you to mount a video camera (not supplied) on the Ninebot.

The other thing that distinguishes Ninebot Plus from other hoverboards is its remote control, which connects to Bluetooth with an operating range of about 20m.

The Ninebot Plus also works with the Ninebot app for mobile devices, which allows you to turn off the automatic lighthouse otherwise automatic, change the color of the reversing lights / brake, see how fast you are going and how much battery remains.

When used at maximum speed, the total mileage will obviously be reduced, but Xiaomi says it will arrive between 20 and 35 km from the 18650mAh battery, with the weight of the cyclist also affecting things here.

Overall, Ninebot Plus offers a huge amount of fun.

The Ninebot Plus comes from Xiaomi, a well-known Chinese brand that we trust.

Hovertrax 2.0 shaver

The Razor Hovertrax 2.0 is apparently UL listed and is listed for electrical safety, exceeding all required EU safety / certification requirements, which should provide peace of mind to potential buyers.

In terms of functionality, it does everything you’d expect from a hoverboard: it has pressure-sensitive plates to control it and a built-in gyroscope to help you stand up, rubber tires and, of course, some LEDs for

Classic Bluefin hoverboard

If Hovertrax 2.0 is a little expensive for you, Amazon also offers the Bluefin Classic self-balancing scooter.

Like the other hoverboard listed on Amazon, the Bluefin Classic is also UL and CE approved, with a Samsung battery with a protection circuit.

HoverKart

While this is not technically a hoverboard, it is a really interesting accessory for those who already own one or are looking to invest one.

HoverKart connects to the standard 6.5 hoverboard and turns it into a makeshift go-kart, providing extra functionality and a safer way to drive the hoverboard.

Ninebot Mini Pro

The Ninebot Mini Pro is an exciting choice for those looking to buy a hoverboard in 2017, as it provides users with a slightly different way of controlling the scale.

While still using their feet to control movement, users have a new steering wheel controlled by knees that looks natural and intuitive.

It’s also quite portable, with a weight of 12.8 kg, only slightly heavier than the hoverboards that everyone used in 2015.

Swegway Pro

Swegway Pro seems to offer something interesting for potential hoverboard owners: an 8-inch hoverboard with integrated Bluetooth connectivity, allowing users to connect their smartphones to the hoverboard and play music while using the card, thanks to the built-in speakers.

Unlike other hoverboards, Swegway Pro also offers two training and professional use guidance modes, which allow you to get used to the board before using all its power.

It recharges in just 60 minutes and should provide up to four hours of continuous use with a single charge based on the website.

OneWheel +

OneWheel + is a fully electric self-balancing skateboard that was successfully funded on Kickstarter in 2014 and is now available for purchase – although it is a bit expensive at $ 1,499.

With a range of four miles and a top speed of 15 miles per hour, OneWheel was not designed to last long, it was designed for good looks.

The engine is fully integrated into the wheel in the center of the table, so there are no electronic components visible on the board.

Ninebot One

The Ninebot One was created by Xiaomi and appears to be an updated variant of the AirWheel, popular in 2015.

The one-wheel hoverboard boasts impressive features with a maximum range of 22 miles, a top speed of 14 miles per hour and a weight of 14 kg, and it looks gorgeous.

There is no single screw or plastic joint on the outside, and it has LED lights around the wheel that can pulsate in a variety of ways, and is customizable via the Ninedroid app.

However, it is the security element of One that makes it more impressive: it is equipped with an intelligent security alarm system that integrates sound, light and touch, and will monitor the status and driving conditions at all times.

If it detects speeding, over-inclination, low power, internal failure or overheating, the cyclist will be notified and the card will be adjusted appropriately.

JBL Free X Sports

JBL Free X: Sports True Wireless Earphones

These are earphones designed for ‘active’ users with IPX5 certification, which guarantees use even with adverse weather and sweat resistance. In the pack, the user finds three types of silicone olives, but also two linings of the same material for the body of the earphones: these shells allow you to adjust the bulk in the ear and find a fit that combines comfort and stability. Good sound, but not exceptional! Continue Reading