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Hi, we have an iMac Pro 27" in for repair that won't start after a failed OSX update. Can somebody please provide a BIOS dump for this model? Best regards!

Hi, got a A1708 820-00840 here that had a tiny liquid spill. Now it doesn't see the SSD, neither in partition selection nor in disk utility. Also, most of the time WiFi will not work, but sometimes it does. The spill was in between the WiFi/BT module and the SSD connector. But it was tiny and...

Hi, I got a 820-3787-A here which will turn black during booting with the trackpad connected (similar to the U9300 issue) but will boot fine without trackpad. If I connect the trackpad after boot, it works without issues. Also shows up as USB device. In verbose mode the last line before...

Hi, I have a 820-3787 on my bench that came in with no image. Found L8300 was burned and replaced it, now image is fine and the device works without issues on magsafe only. However, as soon as the battery is connected, the device refuses to start (chimes but no image) or if battery is connected...

We have this 820-3332 here which initally arrived with a black screen during boot. Resoldered U8900, now it starts once, then freezes when running GeekBench. It will not turn black or anything but just freeze and needs a forced shutdown. After that, it will always freeze while booting at around...

Hi, we have a 820-3476 here which is not seeing the SSD. No repair or water damage history, no visible damage to the connector. All pins except GND measure resistance to ground. SSD_PWR_EN, PP3V3_S0, SSD_RESET_CONN_L, SSD_CLKREQ_CONN_L, SSD_PCI_SEL_L are 3.4V Flashed BIOS, replaced SMC Of...

Hi everybody, we have been replacing tons of Retina LED panels in the last three years, most with the original revisions but some with the generic LG versions (e.g. SJAV instead of SJA1) There always was the problem that resolution settings didn't match up but our customers never complained...

820-4924 came in not booting. SSD was the cause. Changed the SSD and it boots. However, now the fan runs on full speed. HWSensors shows Airport Proximity Thermal Sensor at 129°C, all others just fine (around 40°C) I don't have ASD for that machine, MRI Tool hangs and AHT shows no errors...

Hi. We are deperately looking for A1398 2012-2014 LED panels. (Panel only, not the assembly). None of our suppliers has them. Does es anybody have a source for those? Best regards!

Hi, I have a 820-2610-A here which came in for GMUX repair (showed green artefacts definitely coming from GMUX). After reflowing GMUX (Yes, we did remove _all_ glue), the artefacts were gone but the fans ran on full speed, which they did not before reflowing the GMUX. ASD shows 9 errors (see...

Hi, we replace lots of GPUs on the 820-2915 boards. Replacements go absoluteley smooth without any major problems. When checking the devices after the repair, we often see a colored bar while booting, as shown in the attached image. This bar only appears for one or two seconds while switching...

Hi everybody, YES, I know this board is shit and I know that in 99,9% it's C9560 which causes kernel panics due to GT330M usage. But here is the strange thing: In the last year, we have repaired around 500 boards with "GPU problems" by simply replacing C9560, only 2 (!) in fact needed a new...

Hi everybody, as the prices for 216-0810005 keep rising and the supply is short these days, my supplier told me that the manufacturers in china are using 216-0810028 as a subsitute. They seem to alter the BIOS to make them work with the 820-2915 boards. However, I have searched the web and...

Hi there, I am the owner of a larger repair center in Germany that repairs anything on smartphones, tablets and macs, but specializing in board repairs. I am quite new to the board and kept reading a while, now I have a little problem. We installed lots of screens to 13" and 15" retinas which...

Hi there, first of all I wanted to introduce myself: My name is Jan and I run a repair company in Germany. We are specialized in board repairs for Apple and Samsung devices. I am new to the board and hope we can learn from each other with every new case being discussed here. Today I need some...