Search results

Thanks for the list. Any update on the above list? I.e. recommended models of solder stations, cameras, power supplies, etc. Any recommendations for a thermal camera, etc? Especially for those on a budget. :) I realise the list is more than 7 years old. The links to these are dead: Micro...

OK, perhaps I make a misdiagnosis re heat causing the issue. The unit stayed on overnight with the desktop fan on it. After checking all the data was copied, I then retested it without the fan, and it seems stable. To check the temps, and the fans, I ran "YES" from the terminal. The CPU got...

Thanks for your advice once again 2informaticos, and I hope you had a good Easter. The customer was hoping to get the files back, but were happy to not get them, if we have to wipe it to get it going, which I was going to do via DFU mode. UPDATE: After the Easter break, I again had a look at...

Hello again. Working on a 2020 Macbook Pro. Model A2251 Board model: 820-01949-A It has no display on the internal screen or on an external screen. I tried with another new screen as well. Customer originally reported when they bought it in that it was slow to start up, and was shutting down...

As per the title, does the store sell flux? A search on the store for flux returns 5 items, solder braid, etc, but no actual flux? Is it hidden away somewhere? If the store doesn't stock it, can anyone recommend a decent Brand, and good source for them? I'm in Tasmania, Australia, but happy to...

Thanks once again 2informaticos, I appreciate your advice.

Hi all. Looking at a 820-01958 board that was extensively water damaged. After cleaning, I'm only getting 5v on both USBC ports. With the AC adaptor connected to the primary (REAR) USBC port: PP20V_USBC_T_VBUS 0.00v PP20V_USBC_X_VBUS 5.25v However, With the AC adaptor connected to the...

Hi again. I found a dodgy capacitor on PPBUS_G3H. It wasn't a complete short, but was getting hot when I injected a low voltage. With it removed, the system boots and operates fine. Thank you for your advice and help, once again, I appreciate it.

Hi again 2informaticos. I am aware F7000 is not connected to PPBUS_G3H. I received a new battery from a supplier today. I'm sure its not a genuine, but we rarely have any issue with them. Using the new battery, we had the same voltage (0.56v) This is all with the just the logic board and the...

Hello 2informaticos. Thanks, once again, for your help. Same voltage (0.56v) with or without customer's battery connected. Unfortunately, I do not have an known good battery. I did however try another battery from another two A1932 chassis, but I do not know the state of either of them. With...

Hi all. I have an 820-01521 board with no signs of life. No obvious signs of any water, or other, damage. No sign of heat. Only has 5v on either USBC port. Tried with another USBC port cable, and another known good genuine AC adapter. F7000 0.02v PPBUS_G3H 0.56v R7020 5.12v on pins 1 - 4...

Hi again. Sorry for the delay. I was away from work from last Thursday. ALL_SYS_PWRGD is actually 0.12v, not 1.2V. PM_SLP_S3_L is absolutely steady on 3.32v. I removed r8164, R8165, R8166, r8168 one at a time, while leaving R8167 in place. ALL_SYS_PWRGD still low (0.12v). PM_SLP_S3_BUF_L...

Hi again 2informaticos, and thanks for your help. I cleaned U1950 and reflowed with flux - no change. I then removed it - Pad 8 did look dirty, but after cleaning looked good. I cleaned the pads, added some leaded solder, then resoldered U1950 - no change. I removed Q8150 - no change. R8167 = 10KΩ

Hi all. Liquid damaged 820-00165-A Minor corrosion on top side of board around U6100 - U1900 & U7701. On the bottom, only a tiny bit near Q7155 Cleaned affected areas. Get green then amber LED on magsafe2 adapter. Tested with spare known good adapter No fan spin. I've tried to manually start...

Hi 2informaticos. Long time no speak. :) Thanks for your suggestions. SYS_DETECT 3.29v SYS_DETECT_L 0v R6956 is 10K ohm. 3.29v on both pins. Q6955 0v on pin3 (SYS_DETECT_L) Q6950: Pin1 1.8v Pin2 1.8v Pin3 3.3v Pin4 1.8v Pin5 1.8v Pin6 Fluctuates slightly between 3.24v and 3.29v Diode mode...

Hi all. I'm working on a 820-01598 that had water damage. It originally came in not turning on. The only signs of corrosion was on the bottom side of the board. There was a small amount of corrosion on the battery PCB, On the logic board, there was a small amount of corrosion near F7000. I'll...

Thanks again for your help 2informaticos. The board did not have R5226 or SW5200. Both were not populated. We found C3100 was shorted. Removed and now get 20v and the board is working correctly. Boots into OSX OK. Thanks, once again for your help, I really appreciate it.

Thanks 2infomaticos. PPBUS_G3H = 11.04v with battery attached, with the data line connected as well. SMC_USBC_INT_L = 0.24 with battery SMC_USBC_INT_L = 0.04 without battery No history available, other than the last time the customer used it, it worked.

Hi all. I have an A1707 2016 macbook that is not turning on, either via battery or via genuine known good AC adapter. No signs of liquid damage. Missing PPBUS_G3H. Suspecting U7000, but thought I'd get advice first. Here's a list of what we've checked. PPDCIN_G3H = 5.27v PPBUS_G3H = 0.23v...

Hi all. I'm trying to recover some photos from a customer's iPod touch 4. When it was bought in, it was in a Apple logo - white screen - reboot loop. I can get it into recovery mode, and I have tried to flash it from there using 3uTools, however the flash fails with "Error: Unable to restore...