ThinkPad E15 G4 PD Controller TPS65994AE EEPROM

[caretech]

you can do it with a cheap ch341a or b programmer and free programing software, you will need the clip on connector to connect the ch341 to the chip, unless you can unsolder it, the clip on isnt very reliable though and you may need to mess around to get a good connection to the eprom

Thank you. I can read and write EPROM, but unfortunately the file suitable for you did not work for me.

[caretech]

Hi SMDFlea

I'm having the same problem as 247it. I'd be very happy if you could help me.

Main firmware R1SHT61W(1.32)
PD Hardware ID = 677ee0c5-bedd-4116-ac65-056912e78a79 & Rev_F030817
Version 1.0.0.2

SN:PF4F7G6V
NM-E211 Rev 1.0

SMDFlea Help me please

[caretech]

Hi, I have a ThinkPad E15 G4 I am working on for fun, the PD chip is not talking to the charger, it's stuck at 5v, I have replaced the PD chip three times now (new chips) and always the same result, I have checked for shorts, correct voltages on the PD IC etc - 5v 3v, and the 1.6v on the cc lines, even replaced the USB C port protector IC and the charging port,

The PD IC has a EEPROM connected directly, it's the one in the image attached, I assume the PD chip will not start without some initial commands stored in the EEPROM, the PD IC never shows in device manager, i backed up the content of the chip and attached it, it doesnt look right to me and the bin is only 32k?

Board is NM-E211
SN - PF48263E
MODEL - 21E60050UK

I do have another post here about this laptop, but thought this subject was best posted here, hope thats ok,

Many Thanks,

Can you re-upload this file? I want to try

[SMDFlea]

SMDFlea Help me please

I can`t give a better file than the one already posted, it is confirmed working https://www.badcaps.net/forum/troubl...17#post3599717

Make sure to erase the chip before flashing.

[caretech]

I can`t give a better file than the one already posted, it is confirmed working https://www.badcaps.net/forum/troubl...17#post3599717

Make sure to erase the chip before flashing.

My chip is TPS65994AE not TPS65994AD does this make a difference?