More actions
(galaxy a12 no graphicsrepair guide) |
No edit summary |
||
| (One intermediate revision by the same user not shown) | |||
| Line 1: | Line 1: | ||
{{Repair Guide | {{Repair Guide | ||
|Device= | |Device=Galaxy A12 | ||
|Affects parts= | |Affects parts=Logic Board | ||
|Needs equipment= | |Needs equipment=Soldering Iron, Hot Air Station, Microscope | ||
|Type= | |Type=Soldering, BGA | ||
|Difficulty= | |Difficulty=3. Hard | ||
}} | }} | ||
{{stub}} | |||
== Problem description == | == Problem description == | ||
<!-- | <!-- | ||
| Line 13: | Line 14: | ||
The mobile phone turn on normally, vibrates, can hear sounds but cannot see anything on the screen (not to be confused with backlight issue) cannot see anything even with torch. | The mobile phone turn on normally, vibrates, can hear sounds but cannot see anything on the screen (not to be confused with backlight issue) cannot see anything even with torch. | ||
== Symptoms == | == Symptoms == | ||
<!-- | <!-- | ||
| Line 33: | Line 33: | ||
Check Diode value on this pin(if value is OL or high then proceed to the repair steps): | Check Diode value on this pin(if value is OL or high then proceed to the repair steps): | ||
[[File:Pin-7.png|center|thumb|Diode Value]] | |||
* Lift up the PMIC | * Lift up the PMIC | ||
* Check pad | * Check pad #A17 if its disconnected, if not try to move it and see if it comes off or its lose (shown in picture below) | ||
[[File:Missing pad.png|center|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]] | |||
* Make a jumper for the pad no.17 from the nearest component to the pmic (shown in picture below) | * Make a jumper for the pad no.17 from the nearest component to the pmic (shown in picture below) | ||
[[File:Jumper to make.png|center|thumb|A17 jumper]] | |||
* Your device should be fully | * Check continuity, if its ok then gently clean the area and apply uv solder mask | ||
* Reball and reinstall the power ic | |||
* Your device should be fully functional again. | |||
Latest revision as of 21:10, 22 June 2025
| Galaxy A125(Mediatek) No Graphics | |
|---|---|
| Device | Galaxy A12 |
| Affects part(s) | Logic Board |
| Needs equipment | Soldering Iron, Hot Air Station, Microscope |
| Difficulty | ◉◉◉◌ Hard |
| Type | Soldering, BGA |
This article is a stub. You can help Repair Wiki grow by expanding it
Problem description
The mobile phone turn on normally, vibrates, can hear sounds but cannot see anything on the screen (not to be confused with backlight issue) cannot see anything even with torch.
Symptoms
- Device turns on normally
- No light and no graphics
- Can hear sounds
- Charging is normal and can be detected on computer
Solution
There is a assential voltage for graphics that comes from PMIC that gets disconnected after several drops and the solution for this is that you have to make a small jumper to reconnect the disconnected pad in order to have it fully function again.
Repair Steps
Check Diode value on this pin(if value is OL or high then proceed to the repair steps):
- Lift up the PMIC
- Check pad #A17 if its disconnected, if not try to move it and see if it comes off or its lose (shown in picture below)
- Make a jumper for the pad no.17 from the nearest component to the pmic (shown in picture below)
- Check continuity, if its ok then gently clean the area and apply uv solder mask
- Reball and reinstall the power ic
- Your device should be fully functional again.