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I'm working on a 820-3209 that shows orange light but no fan spin. I was able to find a short on PP15V_TBT. I relieved the short but still no signs of life. I have gone through the main voltages, s3,s5 and all of them are present. I notice the line PPVIN_SW_TBTBST is 2.5v instead of 12.8v...
got this macbook 820-3476 that shows an x on the battery symbol. Whenever you unplug it goes into sleep mode slowly. any suggestions? could tjis be the resistors? i get 10v on ppv_batt_g3h
hello everyone im working on a water damage a1466 820-00165 with no power. It has green light on magsafe but no fan spin. during visual inspection i found heavy corrosion on u6100 (sst25vf064c)
1) can this chip prevent the board from booting up?
2) what is the purpose of this chip?
thanks,
hello im working on a water damage MacBook 820-3209 that turns on but it doesn't show an image on the screen. Im getting 0v on PPVOUT_S0_LCDBKLT and 12v on f9700. From what I can see, q9706 isn't producing PPBUS_SW_LCDBKLT_PWR. I tried replacing this mosfet but I still have the same problem. I...
hello im currently working on a MacBook 820-2914 that shows green light on MagSafe but no display. It shoes't show a image on the screen or external monitor. Is this a gpu issue? From what I can see, it looks like the bios chip has been swapped or resolder. can this cause such problem?
THanks,
hello i got macbook air 820-3435 that doesn't see the battery. Everytime I unplugged the magsafe it shuts off. It looks like my SMC is fried. My diode mode reading on chgr_cso_n - 0.134 & chgr_cso_p - 0.135. I already try replacing it but im still having the same problem. ISL6259 has already...
I got a macbook pro a1286 that keeps throwing this error. it just keeps rebooting non stop. I already tried reinstalling the os and a new hdd. is this the gpu?
hello i got a a1502 that was touched by another shop. it shows green light on the magsafe but it doesn't turn on. After visual inspection, i saw that it was missing a inductor L7430 on the line ppddr_s3_reg_r. could this missing component cause a bigger problem (i.e frying cpu)? i tried to find...
hello I need some help. I'm stuck and need some guidance. I got this 820-2915 that came in with fainted green light at MagSafe. It had a short on PP3V42_G3H & PPBUS_G3H. I was able to relieve the short on PP3V42_G3H by removing ISL6259. Now I have solid green light but I still have a short on...
Hello everyone, i got a macbooka1465 that lags a lot when you move the cursor. The lagging is so bad that you can see the path of the cursor. is this some related to the gnu or current sensing resistor
[SOLVED] [820-3437-A] Orange light No fan spin - Getting 1v on PPBUS_S5_HS_COMPUTING_ISNS
Hello everyone, i got a 820-3437 with no power. I was able to find to find a short on PPBUS_S5_HS_COMPUTING_ISNS. C7324 was the culprit. After re-checking my voltages I noticed that I'm only getting 1.03v...
Hello, I have a 820-3435 that came in with no power. It was missing PPBUS_G3H (0v). After replacing ISL6259 I was able to get a dim green light but still no power. PPBUS_G3H is still missing. any suggestions? Im stuck
Thanks,
Hello everyone I got a macbook a1502 820-4924 were the fan spins after 1-2mim of connecting the magsafe and t it doesn't show a image. I checked the voltage on ppvout_s0_lckbklt and I'm getting 0v on it. I tried a good working LCD and I'm still getting no image. The diode and fuse seem to be...
Hello guys i was reinstalling the OS on a Macbook A1534 EMC2991 via internet recovery. After waiting some time, the computer started flashing a folder symbol. Now every time i try to boot into recovery it shows me a EFI lock. Any idea why im getting this lock now? If the computer had a lock it...
I got a water damage a1465 820-0016
that never turns on. It gets stuck lon the charging logo (low battery) when you connect the battery and magsafe. When I connect the massage without the battery; the machine turns on and shows a x on battery symbol. In both scenarios I don't get a green light...
Anyone knows the adapter socket i need to read a micron N25Q064A BIOS chip? It comes from a macbook A1502 mid 2014. I got a TL866A but i cant determine which socket i need.
Thanks!
Hello, I have a water damage 820-3115 that doesn't turn on. Most of the corrosion occurred on J6955 (BIL) and U3280 (t29 15v boost regulator). When I was checking the power rails I noticed that the S3 rails are missing. I also noticed that this line beeps to ground when I connect the magsafe. Is...