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Device came in as not turning on but i plugged in the charger it turned on. Worked for a day and then will not turn on. I take out the board. Corossion on and near the Wifi chip - but no shorts. Replaced the Caps. PPBUS_AON is 8V. Removed the Fuse - get 12.3V at C5250. PP3v8_AON is 3.8V. Since...

82-00165 Device came in with intermittent hang issue. Turned it off and now it wont turn on. Will give the question mark folder. Green below U5110 and U8010. Replaced both. Still the same Checked U3740 No Shorts. P3V3SSD_VMON 0V SSD_RESET_CONN_L 0V SSD_CLKREQ_CONN_L 0V SSD_PWR_EN 0.5V

Device came in as not charging. PP3V42 was shorted. PPBUS was 0V with no Shorts. Injected Voltage and SMC was heating up. Replace the SMC. Now i get 8.2V at PPBUS and i get 3.4V at 3V42 but still no Mgsafe light and not turning on. PM_SLP_S4_L and ALLSYSPWRGD are missing.

Device came in for a not turning on issue. It has no Magsafe Light and PPBUS at 8.18V Some corossion at SMC. Removed. Jumpered a few pads. Installed a new SMC. Still no change. SMC_AVREF was missing. Repaced U5110. Now i get fan spin ( at max because SMC needs programming as the donor board was...

Customer said the device was on but not charging. When it came to me it wasn't turning on - maybe battery drained. It is first drawing 5V and .540 amps and then unplug and replug the charger it is drawing 20V and 0 Amps. This is the behavior in all 3 USB C ports. I get haptic on the trackpad as...

Device turns on but no backlight. Tried known good screen as well

When i shut down the mac and turn it on. Certain keys wont work while entering the password. Now if i close and open the LID. the same keys start working and i can enter my account. No liquid spill. the keys which are working are also not giving the correct input. For example is "S" is working...

For my reference SSRB2 Device came in certain resistors misisng. R5115 etc. Installed them back. Now i get magsafe and random fan spin for 1-2 seconds. Draws upto 300mAh and drops and again up. PPBUS is 8.59. PM_SLP_S4_L is missing. ALL_SYS_PWRGD pulsing as well.

C9081 was corrodded and shorted. Removed the Cap. Short is gone. 2v5_nand_ssd0 is shorted. Removed TPS62180 still shorted. Bad SSD? any chance of injecting voltage and seeing?

Device was working but suddenly went off. PPBUS at 12.56V. No Fan Spin. PM_SLP_S4_L and PP5V_S3 missing.

For my reference: RSBB PPBUS is at 8.2V. No Magsafe Light . 3v42 / smc_reset_l present. U1950 all 0V except 3v42. PM_SLP_S4_L also missing. BAD SMC?

No MagSafe light. Drawing 2-3 Amps. Getting 16V in PPDCIN Fuse. PP3V42 is 2.7V No Corrosion or anything. Tried Different Small Board and Flex. Replaced D7012. Still the same.

Using 820-00134 schematics. I saw L1501 burnt. Removed. PP1V0_S5 is shorted. Should we inject voltage.?

SSD_PWR_EN = 3.25V SSD_RESET_L= 3.30V PP3V3_S0SW_SSD = 3.3V P3V3SSD_VMON = 1V No corossion. No Shorts on these lines as well. Will not detect any SSD

Device came in dead. Audio board has been tampered and the flex of the audio board is damaged as well. Without these device turns on but shows exclamation and asks to restore. it will detect in AC2 in recovery mode but will not successfully restore. Try forcing into DFU and did a restore and i...

Device came in stuck at 5V. It had a 3v8_aon short 1 year ago fixed by us. Now we see C830A is agreen. PP1v2_s2 is shorted. Replaced caps. Device turns on but will only run on a charger. Before we could check any further the device is now back to 5v and cycling from 0 amp to 0.030 amps. PPBUS...

One port at 5V 0 amps and the other at very little amp draw. PPDCIN_G3H also missing in the 0 amp port. Replaced Cd3215 now both port exhibiting same behavior. ppbus at 12.3v but not detecting in DFU. G3S lines are 0V with no shorts. 5v/3v3/1v8. P3V_G3h is present. SLPDDR voltages around...

Corossion at RP800 and QP800. No shorts. PPVIN_LCDBKLT_F/N/R/P is 12V LCD_BKLT_R is 12V But PPVIN_LCDBKLT_Q is 3V and decreases to 0V. Should we replace QP800 ?

Perfectly fine macbook was kept for resale. it had a trackpad issue. trackpad was replaced . it was working fine. today suddenly it wont turn on. Drawing 20V and PPBUs is at 12.6. Nothing heats up. Was following the power sequence PDF i had. I get voltage upto ALL_SYS_PWRGD. I get voltage at...

Device was water damaged. Corossion at the trackpad and lcd connector and at U7270. PPBUS at 12.6V Thermal scanning showing U7270 heating up. Replaced it. Still a very very very low heat signature on U7270. Still the same. no mouse click. intial fan spin for about 2-3 seconds then after...