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1. What too to use to reprogram SOC ROM U2010? 2. How to force DFU by jumper method? Thanks for any tips!

I found the issue, some liquid near cPU on SDA lines, pulled a wire and working thanks!

Battery sign shows X and fans spinning high. Apple HWT result says "might be something wrong with charger" but I do have an orange light and shows charge sign before login to user account. Looks like no data communication is happening, do these have SMC chip or does the battery talk to the T2...

OK thanks for that will check.

So after doing the process again its installing, then ir reboots, chimes, Apple logo, black, apple logo again and in the Configurator shows a lock, I noticed caps lock was on, so i connected it to an external display, and what do you know, it is in recovery menu. So it seems the display has some...

I notices it had a defect pin on one of the charge ports due to corrosion, also tiny little splash visible on the battery so I guess it had some liquid. Board is totall ]y clean. I retried DFU again with a proper Type-C connector and yes both battery and charger connected. the sequence i didnt...

I got a Macbook 2020 that came in not booting. Chimes, shows Apple logo then crashes. Also the utility menu crashes, so tried a DFU restore which generates an error. Got 20V, all seems OK, chimes, Apple logo, then black. Time to try another T2 chip or what you guys suggest? SSD seems OK, no...

Hi Guys I have a 14 inch Macbook pro with liquid damage around UP800. I have replaced this IC. This is the only area where I saw liquid. The mac has 12.28v and also 3.8V on PP3V8_AON. Tried to get it in DFU mode but that did not work. Area around the Type-C charge chips looks clean. I have no...

It is the right fan. So in the meantime i tried another display assembly (webcam) to no avail. Will check again for broken traces. Are around Q6050 looks clean and all resistor seem OK too.

Hi Guys I have an 820-01700 Core i9 with a high fan spin. I have tried to change the fan but still the same. Checked all lines going to the fan no shorts there. Any other component that can cause this? The Mac works fine, temp reading and all are good and its fast, just fan running max speed and...

Hi guys, I have a 820-01949 that came in with wine damage. Customer said the webcam stopped working. Keyboard was also completely sticky as well as power button, also some wine spilled around T2 chip area. Mac was still turned on. Explained to the customer we had to clean it, and there is a...

Spot on. R7012 was off, replaced it and working board:).

We use original Apple chargers that work with other macs (we only use for testing). Will check and post back tomorrow with values.

Hi Guys, I have a 820-00164 that can runs off the battery, but no charge and not running of AC, no orange light. No shorts on PPBUS, 3.42v and DC-IN lines. No power on PPBUS or 3.42. D7012 is present, tried another U7100, Q7130 and Q7180 with no result. All resistors around U7100 measure OK...

no fault history and board looks new. I dont get any pulse on EN

So no shorts on all powerlines. I have the 3.3, 1.1 and 0.82v voltages. Looks like CPU is not turning on. When i check U7100 power in, I get 12.3v on VIN and 0V on VCC 5V. Should 5V be present here prior to boot, I assume yes? No short on these lines though. U7650 gives 3.3v no 5V. Do these...

Tried DFU already didnt work, battery is the same 5V. Will check for shorts more thoroughly.

I have an 820-01958, no obvious liquid damage that is stuck at 5V and 0.25A. After 10 seconds meter goes black and reboots to 5V. PPBUS is 12.31V, I have 3.3, 1.8 and 1.1v. None of the CD3217 is getting hot or looks bad. Should I try replace or something else to try first?

Damn been fixing macs since 2016 and overlooked SMC_RESET_L..... :eek:. R5100 was off and some corrosion on pin 1, replacing it fixed it. Thanks! The forum is so valuable even u been fixing for a while :).

Hello, I have a Macbook Air 2017 with no light and 8.19v on PPBUS. Some liquid around SMC. Replaced and rewired R5513 that had some corrosion under it. So far I have tried 5-6 different SMC with same result, 8.19v and no light. Is there another condition beside a bad SMC that can pull down the...