From time to time the screen of Acer Liquid Z4 remains black. This issue can happen in several circumstances. Oftentimes it happens after the Acer Liquid Z4 falls. Other times, the screen remains black after a start, lock, or sleep. Whatever the case, do not be anxious, there are many techniques to fix the black screen of your Acer Liquid Z4. For that, it will probably be essential to check several things before attempting the diverse techniques. We will find out at first what things to verify when the screen of Acer Liquid Z4 remains black. We will find out in a second time all the tricks to be able to unlock this bad black screen.
What should you check out when you have a black screen on Acer Liquid Z4
Before embarking on the techniques, we recommend you to check the points below to be able to better understand where the problem can form. This will give you good indications of the nature of the problem.
Is the Acer Liquid Z4 LED on when the screen remains black?
One of the 1st things to check is the little led that is on the top of your screen. In cases where the LED is red or blue when the Acer Liquid Z4 screen remains black, it signifies that the mobile is started. In such cases, it is very probably that the problem originates from the screen.
Is the Acer Liquid Z4 charged?
Occasionally, a deep battery discharge prevents the Acer Liquid Z4 from turning on for some time. Make certain the Acer Liquid Z4 is totally charged by leaving it connected for at least one hour. If perhaps after that the LED doesn’t light up and the screen remains black, the problem can probably result from the electric battery.
Is the Acer Liquid Z4 damaged?
If the Acer Liquid Z4 screen remains black after shock, after falling , after being wet , or after damage , the screen may be damaged. In such cases, none of the methods below will work. You will then have to bring your Acer Liquid Z4 to a repairman.
What to do when ever the Acer Liquid Z4 screen remains black?
After verifying that the problem comes from the screen, you can try the next tips to unlock the black screen of your Acer Liquid Z4. If a method doesn’t work, check out the next one.
Plug the Acer Liquid Z4 into its charger
One thing to do when the screen of Acer Liquid Z4 remains black is to put the mobile phone on. This will make it feasible to be peaceful for any following manipulations. This as well solves the possible problem of a deep discharge of the mobile phone electric battery.
When possible, take out the electric battery from the Acer Liquid Z4
If the Acer Liquid Z4 is easily detachable, we recommend you to remove the electric battery . This occasionally handles the black screen problem. Hold out a few seconds, then turn the battery back on and try to start the mobile phone. In cases where the screen is still blocked, check out the next step.
Remove SIM card and SD card
It occasionally happens, without explanation, that the SIM card or the SD card conflicts with Acer Liquid Z4 and causes a black screen. One of the methods to try is to take out the SIM card and the SD card. Once it’s finished, you should try to start the cellphone. In cases where it works, this means there is a conflict with the SIM or SD card.
Force Acer Liquid Z4 to reboot
If the screen remains black, the problem often resolves with a forced reboot . To achieve this, you will need to press a number of keys simultaneously. You must remain at least 10 seconds for the forced reboot to run. The key combo depends upon the models but had to be one of the following:
- low volume + power button
- low volume + power button + cough Home
- high volume + power button
- volume top + touch power + cough Home
- touch power + cough Home
Hang on until the electric battery is empty
Finally, if perhaps none of the above solutions work, you can try to let your electric battery discharge. Ensure that the electric battery is entirely empty. Once it’s done, plug your Acer Liquid Z4 into its charger and try to start the Acer Liquid Z4.
