Search results

I had a shorted line on P3V3S5_LL and replaced U7201 power on now all good :)the battery is not good and it's really slow...

I ordered another SMC with exactly the same and soldered it but still same outcome green light no power PPBUS_G3H is 12.29v now

3V3_S5/SUS it's 0v and PPBUS_G3H is 12.6v. I am using the original 85w adapter

okey then i have an A1990 just have to confirm the size. Do I need to remove the last 2 from right side chips to install the new ones?

I already soldered them, but not in order now i wouldn't know where they need to go. Can they be from another model and how many they need to be?

The ''new'' nands are from an older model but the same and I don't think they are more than 500GB all of them the old and new. What would be the correct location you mean left and right ? I resoldered the new nands on the place where the old were

2 on the right side are fine I meant and the circuit on both sides :) I tried to restore with 3 other NANDs on the left side but shows the same eror as before only with the 2 nands from the right side --- Gave up waiting for device to transition from DFU state to DFU State---

This board is with 6 NANDs, of which 4 from the left side are dead, the 2 on the right side and the circuit is fine. I tried to force it to DFU mode and restore but it didn't want, it showed and error. Now if got 4 other NANDs from another board and I will try them and again DFU hope it will be...

Hi, I have this 820-01700 board which came with no power. After inspection, I saw that the SSD line is shorted on PP2V5_NAND_SSD0, PP1V8_SSD0, and PP0V9_SSD0. Also, U9580 had to be replaced because it was shorting PPBUS_G3H. I replaced U9580 and U9500 to be sure all is good and found that ALL...

I have replaced the SMC with another one from a different model, now I have a green light but no power and on/off triggers

Hi. I have this A1425 with a missing PP5V_S5. I replaced U7000 and U7201 same thing. There was a moment before i did anything that it showed green light once and powered on and then it stopped. The SMC I also re-balled. PPBUS_G3H -12.3v PPDCIN_G3H - 15.2v PP3V42_G3H - 3.4v PPVRTC_G3H - 3.4v

Confirmed :) CPU needs replacement

Yes i have PP3V3_S5 it is 3.3v, but PP1V05_S0 Is shorted

I have replaced D7012, I got a green light no power still.

Anyone :D

And another one... Missing all voltages besides PPDCIN_G3H which is 15v and DCIN_ISOL_GATE_R 15v. PPDCIN_G3H_ISOL it's 0v and I already replaced Q7010 and stayed the same. The diode mode measurement on PP3V3_S0 is 0. When a low voltage is injected on PP3V3_S0 only thing that showed heat was...

Now yes. It was strange that U2800 was overheating and not powering on while getting 20v. I took out and re-soldered U2800 and it powered on with just no backlight, the reason being the backlight cable was broken which I fixed and now it's all good :) Thanks for the assistance ✌ :cool:

Update: Also U2800 goes up to 50 degrees in about 20-30sec and continues to go up slowly

Hi guys. I have this A1708 820-00875-01 with a no power issue. There was some corrosion on the backlight circuit, on C8475 and C8466 which I cleaned and re-soldered. At the moment when plugged in it goes to 20v and around 0.5-0.6 amps but then drops to 0.3amps and stays that way. On the thermal...

I have replaced another SMC still the same