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Redmi 6A Display Light Solution

Redmi 6A Display Light Solution Easy BackLight Way 

In this artical we post Redmai 6A Display Light Solution easy mathod,And explain possible reasons as well as the troubleshooting procedures we use to correct it.
The Redmi 6A has some minor performance issues that you may face:
Problems
  • White Display
  • No Display
  • Lines on Display
  • Low Light on Display
  • No Backlight

Redmi 6A Display Light Ways Backlight Problem Repair:

Image Credit ©:  MobileRdx. 

Redmi 6A Display Light Solution
1.   Clean the display connector on the PCB. Wash the parts in the section.
2.   First find the light section in the mobile, a diode boost coil and capacitor are seen near the charging ic in the light section.
3.   First of all, check whether the boost voltage (20V) is being attained by hot testing at the output of the diode.
4.   If voltage is found, check the beep from the anode end of the diode to the tips of the display connector. If the beep is coming, the boost voltage should also be 20 volts.
5.   If the normal voltage is found on the diode, then check all the capacitors and boost coil in the light section.
6.   Boost coil or capacitor is bad, then remove and replace it from another light section.
7.   On one of the pins of the IC, EN signals come from the CPU, which, when the display is active, comes from 1.8 bolt to 2.8 bolt on a register there, if the voltage is coming but still the output voltage is not coming, then the IC Change

Oppo A57 Light Display Way

 Oppo A57 light display way solution done

in This Artical We Post Oppo A57 light display Way Problame solution

Oppo A57 Light Display Way
  

Oppo A57 Display way solution

  1. Clean the display connector on the PCB. Wash the parts in the section.
  2. First find the light section in the mobile, a diode boost coil and capacitor are seen near the charging ic in the light section.
  3. First of all, check whether the boost voltage is being attained by hot testing at the output of the diode.
  4. If voltage is found, check the beep from the anode end of the diode to the tips of the display connector. If the beep is coming, the boost voltage should also be 30 volts.
  5. If the normal voltage is found on the diode, then check all the capacitors and boost coil in the light section.
  6. Boost coil or capacitor is bad, then remove it from another light section.
  7. On one of the pins of the IC, EN signals come from the CPU, which, when the display is active, comes from 1.8 bolt to 2.8 bolt on a register there, if the voltage is coming but still the output voltage is not coming, then the IC Change

What Is efs file in Android Firmware

Work of efs file  in Android  Firmware

the full name  of efs file  in Android  Firmware "Encrypting file System" .It stores information like imei, serial number, configuration, diag settings and radio settings etc.in encrypted format in file system level firmware. 
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If the efs file becomes corrupt for some reason. So this imei information does not come from the mobile phone or there is a problem of base-band unknown, radio signal etc. Because of which network signal does not come in the mobile phone.

efs file  in Android  Firmware

How will you loss the EFS folder


As far as I know, you always lose your EFS by incorrect operation. For example, erasing ROM or Flash data using an unqualified method. Even starting the wrong way like direct ejecting the battery to turn off the mobile phone can also contaminate your EFS. 

Roaming routes and flashing usually have no effect on EFS data, but you know that the actual word can have everything. There are a few ways you can check if your EFS folder is lost: inputting * # 06 # on the dialer, going to Settings / Phone / Status or checking the MAC address.

How to Backup EFS folder ?


There are many tools that you can use to back up an EFS folder. They all work in a similar way. Eg mircel box, umt, z3x