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Cant find any corrosion. There was 5V on both ports and both CD3217 chips was getting hot under thermal camera. Both replaced and now got 20V and 0.05A-0.1A from charger. Only T2 chip gets little worm. PPBUS_G3H 12.28V PP5V_G3S 0.018V PP5V_S5_LDO 0.012V PP3V3_G3H_RTC 3.28V PP3V3_G3H 3.22V...

With battery 20V 0A from charger (MagSafe 3got no light, tested on MagSafe and USB C) PPBUS_AON = 11.05V Board only: 5V and 0.24A from charger, after few seconds drop to 0.06A. PPBUS_AON = 11.99V Diode mode on PPBUS_AON is correct. PP3V8_AON = 3.79V Removed F5200 and F5200 and F5201/1 got...

Audio board was affect by liquid. There was webcam connector on display board badly damaged and LP670 melted (client don't care about webcam). Replaced audio board, it boots but there is no audio from internal speakers. When pressing vol UP/DOWN I see on the screen volume change. Audio input...

Cant find any liquid damage. One port charge only on one side, nothing on another side. 'Mac USBC & EDP meter" shows correct diode mode readings of JB500. Replaced CD3510 just in cases and no progress. Diode mode values RB630, QB630 are correct. When plugged on the faulty side got 0V on FB200...

After liquid damage. Connector on Display board was burn out. Testing with know good display assembly and flex cable. PPVOUT_LCDBKLT = 51V PP3V3_SW_LCD_CONN = 3.27V PP3V3_SW_LCD = 3.28V EDP_PANEL_1V8_EN = 1.78V PP5V_SW_LCD_CONN = 5.1V PP5V_CAM = 5.1V Any idea?

No corrosion on board. At the start there was 5V and 0.1A from charger. One of the CD3215 had burn mark and then I found PPV3_UPC_XA_LDO was shorted to ground. I replaced that IC, short gone and then I found other CD3215 got short as well on PPV3_UPC_xx_LDO. At this stage PPBUS at F700 was 0.1V...

Cant find any liquid on board. PPBUS_AON (pin 2/F5200) got 0V (.473 in diode mode) PP3V8_AON 0V and .340 in diode mode FF200/1 both got 5V on both sides. PP3V3_UPC0/1_LDO correct diode mode and voltage when charger connected PP1V5_UPC0/1_LDO_CORE correct diode mode and voltage when charger...

There was 5V and 0.01A Board had tiny liquid damage on U8220 and C8220. Both components replaced and board only had 20V and 0.15A. With battery connected it was at only 5V. Replaced U7000 now got 20V with battery at around 1.2A Board only got 20V 0.18A. N0 chime, no caps lock light, USB...

Got 16GB board and got donor board with 32GB RAM. Is in that model possible to upgrade RAM I know donor board got hynix modules and I will need change resistors on 'CPU DRAM CFG'. Other than that is anything else what must be done?

Cant find any liquid damage. Got image, but no backlight. Tested clients screen on know good A1990 and it is working fine. Tested J8500 with EDP METER and all diode mode values are correct. PPVOUT_S0_LCDBKLT 55V Tested with known good LCD flex cable and no luck. When doing "revive device" in...

MacBook had liquid damage. Audio board was damaged as well. I manage to turn it on but got some lid/sleep issue. When plug charger it turns on. When I almost close the lid I see display turns off (so lid sensors works?) but when I open the lid it think lid is still closed (no caps lock LED...

Display got no backlight. No Caps Lock LED. USB mouse light OK. PRAM reset via USB keyboard is not working. CPU gets hot. Tried 820-00163 clean ME fixed SSN.bin but no luck. Any idea?

Cant find any liquid. When charger connected to one port got 5V and 0.25A. On another port got 5V 0.24A and the USB C multimeter turns of and then turns on in cycles every 5 seconds. Checked diode mode readings with USBC meter and all looks fine. Replaced U3100 which is linked with not stable...

Board got liquid damage around JT400, Q5240, CC337. Found short on PP5V_S2, replaced UP700 and short gone. Got 5V and 0.04A from charger and I can hear clicking sound on the board - transistor? Cant locate precise the location of that sound. Any idea?

Client had repaired liquid damage in some other shop. They replaced battery and on the board I can see liquid damage around: UB600, J5260, QV300, UB300 When on battery there are random restarts with kernel panic. "*** Panic Report *** panic(cpu 0 caller 0xffffff801f342836): nvme...

When battery is disconnected got 5V and 0.25A on charger on both ports. With battery connected it turns on but on login screen trackpad/keyboard is not working. Fan on high RPM and 5V and 0.0A on charger on one port. Second USB C port got not reaction on USB C volt meter - it is linked with...

There was small liquid damage on UR660. Replaced that and still no sound. IC is getting hot under thermal camera. Don't have access to know working board. Values around UR660: PPBUS_AON_SPKRAMP_ABC_ISNS 11.96V PP3V8_AON 3.79V PP1V8_AWAKE 1.79V PP1V2_AWAKE 1.22V CR668/1 3.48V RR662/1 0V...

Cant find any corossion. Board won't boot when PCIE SSD is connected (SSD controlled on SSD is hot). After press power button fans are spinning (trackpad clicks, caps lock LED not working) and screen is blank. As soon SSD is removed all works fine if boot from USB port. Tested with known good...

Voltage on J8600/ 1 and 56 is correct. Found low diode more reading on SSD_BOOT_L = 0.014V (should be around 0.780V). Removed all caps on that line C8675-77 and still low value. Then removed R1442 and on pad 2 still low value so fault in PCH?

Tested on genuine 96W charger via USB C Very small liquid damage on UR660 and UF800 PPBUS_AON - 12.25V PP3V8_AON - 0.68V (0.144V in diode mode) PP3V8_AON goes to UR660 which was affected by liquid so I removed UR660 but still got only 0.68V All LDOs on all CD3217 are correct in diode mode...