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Yeah did it like that, jumper between pin 1 en 2 but no duf mode...

It was a small crack on top as shown on picture. Seen it before so I directly knew this was the bad cd3215. But after replacement and still no 20v I thought maybe a bad charger caused it and what clients do is try other ports. So thought maybe they destroyed more than one cd3215... Just tried...

Hi all, Got this board with a dead cd3215c00, there was a crack in it. So thought easy peasy. Changed the cd3215 U3200 with another one (ordered from ALI so not sure it was good) but still no 20v. Checked further and ppbus_g3h was 6v. After further inspection saw that another U3100 (cd3215c00)...

Hi guys, I found this old post with the exact same symptoms I’m having… is there any solution for this?

Ohh really?!? That really is shitty... So just keep on trying to restore!? Another question, does DFU mode require a working Keyboard and screen. Because I received this repair only with topcase, without screen. And don't now for sure if keyboard is working.

Any more suggestions? What can I do next…

Yeah done them both. Came back with same error as before in post. Had to use the pads to get in DFU mode. Maybe keyboard/powerbutton also not working.

Hi 2 informaticos, Back after a long while again with this board. L9580/81 are same reading 372. I was checking booting sequence and all the rails are ok until I get to P5VG3S_EN That one is missing... Looks like the PMU does not send Enable signal. Should I further investigate there? Thxs again

But after I connect the USB-C charger and disconnect the diode mode is very low. 0.047 and after 2 minutes it is back to 0.397 This does not feel good...

Diode mode reading L9080/81 397 What does this mean? Is this the same range or to big a difference?

PP3V3_G3H_SSD0_SNS 3,3V PP3V3_G3H_SSD1_SNS 3,3V PPBUS_G3H_SSD0_SNS 12,3V PPBUS_G3H_SSD1_SNS 12,3V PP2V5_NAND_SSD0 0V 56ohm to ground PP2V5_NAND_SSD1 0V 56ohm to ground PP1v8_g3s 0v PP5v_g3s 0v pp3v3_g3s_t 0v Is there a short in de Nand? Had that ones before and was unfixable...

Did not check, was assuming that first we had to have ppbus_g3h before anything else. Will check for ssd voltages.

Hi Thxs for the fast reply. I know about the charger. I always use the 96W charger... Got to force DFU mode but came back with error. It feels like I'm olmost there...please advice further.

You where RIGHT again... It was RB281 which had a different diode mode measurement than corresponding measurement on right channel. Now all 4 ports give 20v 0.1a. But still getting 12.3v on ppbus. Tried to get in DFU mode to restore t2... But can't get it in DFU mode. (I know how, done it a...

Hi, checked diode mode readings around CD3217 chips left en right Found an OL on Pin79 UB300 USBC-TA-SBU1 on the left. On the right it was 0.625. So changed the CD3217 which I ordered new. Now boft sides give same results. But still 5v on left side and 20v on right side. PPBUS_g3h is 12,3v...

Yesss, it was the Q7040. Replaced it from a donor board and it works perfectly!! thxs 2Informaticos

Hi 2infrmaticos, Thxs for fast reply: Diode mode in ppbus_g3h 0.458 measured at f7000 pin 2 (Red pin on ground) U7000 voltages: P_IN 5,1V AUX-DET 1,28 VDDA 5,05 VVDP 5,05 AUX_OK (looks like nc, if you mean pin 28 on u7000?) Amon 0V Bmon 0V

Hi have a weird problem, Received liquid damaged a2141 16" the two left USB-C ports stay on 5v, 0,330A Upper on steady lower boot loops. The right ones go to 20v 0,107A both steady. When connected to either 4 USB_C PPBUS_G3H goes to 12,3V. Also received with a solder blob below F7001 connecting...

Hi I'm a new poster to the forum. Have been reading for a while now. But this is my first post so excuse me if not good. Got a liquid damaged 820-01949 Was already been played with. Found a ISL9239 on the board in stead of a ISl9240. Replaced it off course with a new ISL 9240. But still no...