Hi all, I working on MacBook Pro A2159 LB # 820-01598, it's just stuck on 5V. The two USB-C connectors on the side., when attached power adapter to one of them, comes up to 5.2V & nearly 0.32amp & then reset after about 15 sec. When attached the adapter jack to the second USB-C connector, it stays on 5.2V & NO amps taken. I took some measurements when the adapter jack was on the first USB-C connector. PPBUS_G3H 12.4V & it resets within 15 secs, & then it resets PP3V3_G3H_RTC: 3.29V, PP3V3_G3H: 3.21 & PP3V3_UPC_XB_LDO. I removed F7000 & check on Pin 1, PPBUS_G3H 12.4V is stable & no resets at all. The board is clean as ever, no shorts or liquid spill. Any tips will be greatly appreciated. Thanks
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Re: MacBook A2159 820-01598 Stuck on 5V
Thanks mon2, I will read all this tomorrow morning & inform you.Comment
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Re: MacBook A2159 820-01598 Stuck on 5V
Hi mon2, today I received the CD3217B12 chips (They say 100% ORIGINAL (:- ). Replaced both ICs & the Laptop is up & running. At first I did assume that one of these chips were defective as they 5V was resetting on one of the USB-C connectors & this is why I ordered 5 of them & the stencil too, if in case the chips were not defective, I could have re-balled them & use them again. Now I have to find which one of the CD's is defective. I will find out tomorrow by taking GRND to resistance test on both., & this link https://boards.rossmanngroup.com/thr...s-to-5v.62443/ does not make any sense as they assume the T2 chip is defective. Infact according to the the schematics, they talk about the DATA line which is the futher state of the laptop. In my case even when I reomved the fuse that you told me before, the board was having a 5 volt reset problem, this is why I came up to the conclusion that maybe the CDs might be defective. Now all is set & laptop is working fine. Thanks for the help.Comment
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Hi,
I have a MacBook Pro 13 inch A2238 M2 and it was stuck 5V with 0 amps. I measured some important lines and I found a short on PP3V8_AON_MPMU_ISNS_VIN, I tried injecting 1v and I saw heat coming from the mPMU so I removed the pmu thinking that was the problem. I don't know why I didn't check the other side of the border but there it was, a shorted cap. I replaced the cap and the short was gone, so I reballed the PMU and put it on again but voltage was still stuck at 5V and the current was fluctuating between 0 and 0.45 amps. I checked under the thermal camera and I saw the mPM...04-02-2025, 05:02 PM -
hello everyone, let me ask, I have a macbook which is stuck at 5v and 0.03 A when tested with a usb tester. Previously I wanted to replace the screen on the device, but by accident I forgot to unplug the battery. This caused the MacBook to get stuck at 5v, previously I had replaced the CD3215 (U3100) IC because it was warm. After I replaced it the problem was still not resolved. Please guide. Thank you -
Hello! Please help with a strange disease that I have never encountered before.
At first I got the following status:
MacBook does not turn on. Current consumption is about 0.500-0.600A at 20V from USB-C.
- no signs of rust, or spilled water
- CPU gets hot, fan still spins, no Capslocks light
then I cleaned it and I got the following video:
- Cannot install software, and after a while I get a red screen and the whole thing freezes
Macbook Pro A2159 / Bệnh lạ07-28-2025, 11:35 AM -
I need dump file for nand A2159 512GB with 2 Nand chips >.I upgraded 128gb to 512gb..I use P13 there are only 4Chips...
I need dump file MACBOOK PRO A2159
TSB4232(256)
TSB4229(256)
Thanks -
Hi friends., I am working on MacBook Pro A2159 touchbar 2019. The old logic board was liquid spilled so I ordered another logic board from AE. Received it & all worked fine till I got to the Chinese login screen where the login screen password tobe entered. I tried to reset the password but it again gave me options which I do not know about the Apple ID. I formatted the onboard SSD. & wanted to change the startup boot sequence but in order to change it, again the password is needed for that too. Is there a way to get rid of this password?? The seller has not replied back past 2 days, how...05-13-2025, 04:16 PM
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