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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!

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...

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...

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...

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...

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?

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...

This 3476 shows charge but it is not charging: "charging no". All other values seem ok and are recognized like total mah and cycle. Has orange light on the charger. I am out of options (that I know of). What I did so far: - Tested different charger and battery - Checked every resistor around...

Customer brought this machine, installed his own cheap crappy battery from Amazon and battery showed X. After replacing with a good battery, the battery showed. I have an orange light, however, it does not charge. Checked all resistors around U7100 they are all OK, replace U7100, same issue. 2...

hi guys I have a Macbook pro 15 inch, when we close the lid it shuts off/reboots. Is this a software feature (Googled it but couldnt find much on it) or might this be some sensor failure?

Hi guys, I have a weird one. Macbook came in with liquid damage and as always we register it with the serial number on the bottom plate which showed: MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports) We changed a charge port and power button that didnt work as well. We informed the...

Hello, I have a Macbook Air where the screens sometimes blacks out, I can see the LCD just powers off every now and then. Already tried to replace the IO board but that did not work. Would it means 3.3 or 5V is dropping sometimes? Any known issues that can cause this problem? Thanks.

Hello, where can I ask a question with regards to my forum membership? I have been charged twice on my credit card on June 11 and 14th 2 x 29USD.

Hello, we have an 820-00244 that came in for battery replacement. After the battery was replaced, we have a black display. We have tried a known working display and same situation. Display completely black, so its not no backlight. I checked, we have 5V (C8512) for a second and then drops to...

Hello, I have a Macbook Air Retina with a short on the PPBUS. 0V, 5V on the type c ports, no signs of liquid. Can I safely inject voltage or do I first need to remove all U72xx? When just connecting the charger nothing gets hot. Nothing looks bad as well I visually checked all PPBUS IC's.

Hi, I have an Air with liquid damage around Type-C ports. CD3215 (5V 0A ) had a short on one of the 3.3v lines and one got a bit warm, after replacement shorts are gone. Also no short on any of the big coils. Now I get 5.15v 0.02A and then switching to 5.02v and 0.26A and staying there. PPBUS is...

Hi guys, I have an 820-00239, customer said it stopped working after an update. Since this is not a T2 chip version I dont think its a software issue. The machine takes no charge 5.12v, no amp on all ports. I measure as follows: PP20V on C3201: 5V PP3V3_UPC on C3208: 3.3v PP3V3_G3H on C3200...

Hello, I have a liquid damaged 820-00239, a little bit of liquid near one of the type-c charge chips and some spill near the IC that created PP3v3_G3H. 5v on charge port no amp and missing PPBUS and 3.3v. After replacing the 3.3v IC I get PPBUS at 13v and 3.3v goes to the charge chips. Now I get...