GALE 4G WHL MB-18709-2 unkown IC gets hot

[Blitzbirnle]

Hi everyone,

I'm having an issue with my motherboard (GALE 4G WHL MB-18709-2, model 15-cn1103ng). The problem is that one IC near the battery connector gets hot, causing the system to enter a boot loop — it powers on briefly with the fan spinning, then shuts down again after about a second.

IC shows:

7J=5J
T3J

I've attached a picture of the IC in question. If anyone can identify this component or has seen a similar issue, I'd really appreciate your help!

Thanks in advance!

[m1ch43lzm]

7J=** RT8816AGQW
Datasheet

[Blitzbirnle]

Thank you very much for the previous help – I’ve finally fixed that issue. But now the motherboard wants to challenge me again.

I’ve discovered a short on the USB PD controller (TPS65987). I replaced it with a new one, and now the board powers on – but still doesn’t POST.

I’m wondering: Do I need to program anything, like SPI flash memory or configuration files for the TPS65987?

There are three SPI flash chips on the bottom of the board:

• One is clearly for the BIOS.
• The other two are possibly for the EC (embedded controller) and the PD controller?

From what I understand, the TPS65987 requires external SPI flash with a valid configuration, otherwise it might fail silently or stay in a low-power mode.

I’ve already desoldered one of the chips (a Macronix MX25L2006E), dumped its contents, and verified that it’s not empty (so at least some data is present). But I’m not sure whether this config is valid, corrupted, or even related to the PD controller at all.

If anyone has experience with reprogramming PD firmware or knows what tools might help here – I’d be very grateful for any tips or directions.

Thanks in advance!

Best regards

[SMDFlea]

Thank you very much for the previous help – I’ve finally fixed that issue. But now the motherboard wants to challenge me again.
I’ve discovered a short on the USB PD controller (TPS65987). I replaced it with a new one, and now the board powers on – but still doesn’t POST.
I’m wondering: Do I need to program anything, like SPI flash memory or configuration files for the TPS65987?
There are three SPI flash chips on the bottom of the board:

• One is clearly for the BIOS.
• The other two are possibly for the EC (embedded controller) and the PD controller?

From what I understand, the TPS65987 requires external SPI flash with a valid configuration, otherwise it might fail silently or stay in a low-power mode.
I’ve already desoldered one of the chips (a Macronix MX25L2006E), dumped its contents, and verified that it’s not empty (so at least some data is present). But I’m not sure whether this config is valid, corrupted, or even related to the PD controller at all.
If anyone has experience with reprogramming PD firmware or knows what tools might help here – I’d be very grateful for any tips or directions.
Thanks in advance!
Best regards

If you want the PD firmware start a new thread in the bios requests section, and include the laptop serial number, board number and your dumps - https://www.badcaps.net/forum/troubl...-requests-only
Some of the newer HP laptops do include a PD firmware update in the bios update package.

[Sephir0th]

A unprogrammed PD-Controller will not result in no-P.O.S.T. as long as the device can be powered from the proprietary Jack and/or from battery. IF the PD-Controller is indeed the origin herr (which is not very likely) then it's caused by technician fault (soldering failure).

So is strongly assume you're on the path here.