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I have successfully flashed the .BIN file to the SoC ROM.
Now im getting the following message in AC2
Unexpected device state 'DFU' expected 'Recovery' (Probably forced into DFU mode externally) [com.apple.MobileDevice.MobileRestore – 0xFAE (4014)]
Note:
SOC_FORCE_DFU and PP1V8_SLPS2R are not...
https://amzn.eu/d/8XLQ3mB (programmer)
https://amzn.eu/d/iO1pliT (1V8 adapter)
https://amzn.eu/d/hLjAQE3 (T2 chip soldering board)
This should work right?
which software will be used and where do I get the T2 rom file?
With and without battery, yes.
I have removed U6950, same behavior.
Edit: Just the T2 is getting „warm“.
Edit2: In DFU mode SLPS2R and AWAKE voltages are stable.
Hi,
i have here a „820-01041-07“ with PPBUS_G3H on 12.23V.
When I connect it to the charger (just the logicboard / without battery) I’m getting 19.6V / 0.00-0.05A (it’s power cycling).
Already tried a DFU restore via AC2, sadly it ends with an error. (T2 is getting warm during DFU restore)...
New cable installed ... battery is now detected and im able to charge it.
Still don't know why the KB isn't working, any idea?
PPVOUT_S0_KBDLED_CONN = 5.1V
BKLT_PWM_KEYB_3V3 = 0V
PP3V3_S2 = 3.3V
PP1V25_S2 = 1.25V
KBD_BKLT_PWM = 0V
(I have set it in macOS to max. brightness)
So the MacBook...
it always ends with:
edit: Now I was able to restore (repair) it but the issues like high fan speed, no battery detected and no ob backlight is still present.
What else could be the issue? I mean I have successfully restored the device.
edit2: I found the reason why the battery is not...
I have replaced the kb backlight and battery sadly ... both are still not working … any idea, what else I can check?
Edit: DP900 is fine.
Edit2: I noticed when turning on the MBP after 2-3 seconds it crashes and then it boots up again. (I can login etc.)
Still strange why it is crashing at the...
ALS is working and KB backlight can be adjusted via OS (but can't say anything on the keyboard - have tested it in a dark area)
I have found out that "RT046" was blown, replaced it now I have 5.1V on "PPVOUT_KBDLED" - still no backlight. (KB brightness is set to 100%)
Bad keyboard backlight?
Same voltage.
If I need to replace the battery ... which do you recommend? (Location: Europe)
Note: The battery board was a little bit corroded at F400 area. (Fuse is OK)
Edit: Why is the keyboard backlight not working?
Hi,
I have a MacBook Pro M1 which doesn't recognize the battery (0% - Cross Icon).
PPVBAT_AON (with charger and battery connected) = 11.96V
PPVBAT_AON (without charger and battery connected) = 1.4V
PPVBAT_AON_CHRG_REG = 11.96V
PPDCIN_AON_CHRG_R = 20V
I assume the board is fine because both...
I managed to open the .BVR3 file which line should I check? How is it called? UPC0_5V_EN?
PPVBUS_USBC0 is only 1.7V (UPC0_5V_EN = 0V) when an usb device is connected, PPVBUS_USBC1 is 5.1V (UPC1_5V_EN = 3.2V) with an usb device connected ... which is normal.
So I assume the CD3217 (UF400) is...
Hi,
MacBook Air (M1) got water damaged in area of the CD3217 (USBC0) ... device is able to boot.
- 20V boost is working fine which means that the CD3217 is fine
- Issue: Unable to power USB device on USBC0 port // USBC1 port is working fine.
What should I check first? Is there something wrong...
Any idea what else could be wrong?
Edit:
- 5V / 0.16A | PPBUS_G3H = 12.27V
- 19.4V / 0.04A | PPBUS_G3H is slowly going down from 5V to 0V
Did you ever seen such a behaviour?
History:
Water damage (didnt found any signs), one CD3215 area looked like that:
Trace on C3115 to PIN12 was broken, fixed it with a wire (PP1V8_SLPS2R is present):