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ok...so i need some help. i'm at the point that macbook boot without problemi WITHOUT BATTERY macbook can't boot with battery and power supply: fan start spin, i hear charging sound than fan stop spin and nothing happen (i have 1,1a on power meter that drop to 0,6 as soon as fan stop spin)...

ok, changing u3200 now i can read usb drive. i have a lot of problem to use external monitor throug usb c adapter...but it is not a foundamental problem at the moment. i don't understand why i cant boot with battery only or power supply + battery...i will tra another battery flat...just in...

changed ..no luck!

no! should i change it or what?

i'm very very sad because i've deleted the post i've created some days ago...i will try to summarize as better as i can: 820-00840, completely dead not switching to 20v after changed 2 usb controller, 20v but no boot. all voltages present in loop. macbook like in boot loop. changed bios and...

found the problem: r7052 were 18 ohm and not 0. made a jumper and now orange light....and (i think) charging: it says "calculating charging time)

17/18 30 ohm, 27/28 20ohm

With battery and power supply https://www.dropbox.com/scl/fi/10h45tvors33l1e3gxcmx/Video-04-03-25-16-33-36.mov?rlkey=ai541obwywfs3hrx2crhaybby&st=ozyyywp0&dl=0

11,54v with battery 12,57/8,3 in loop with power supply only, 12,57 stable with battery and power supply i've discovered that i have orange light if i connect the machine and power off it scl/sda 0,500

Tried 2 differents battery, and 2 different power supply. Tried reset smc No luck Always green light Bolt symbol But system says not charging Any help? Thansk

no...it's seems to work without problem...previous technician sent me a video of the macbook booting: APPLE LOGO + BAR, then black screen, then apple without bar, then point arrow big and loading bar big, then reboot. in another video, it boots to desktop, after 2 minutes, fans a top speed and...

i have already done it some post before

no problem with cine bench....but i'm sure that there is an hardware problem...

I was able to installa Sonoma…. Now I’m launching some stress test like cinebench…let’s see

ssd is not recognized in target disk mode in finder...even in utility disk...but i can see from recovery, even format it i've used tha same cable i use for dfu restore (cable from power supply) my mac is m1

No errors… I’m pretty sure that I have an hardware problem but where to start? For example now I have a bicolor loading bar… and it is loading since 50 minutes…

now i've boot from internet recovery, selected sonoma installer, and as soon as it started to install, macbook has rebooted again with question mark tried again to boot from internet recovery: this time during the loading bar, fan at top speed and reboot

i don't know the real history question folder at boot if i try to boot any os from usb, it goes to internet recovery i've restored in dfu (lock symbol on apple configurator) booted in internet recovery as soon as i try to go to Security Utility Boot , it says me that there is no...

hey bravo i have the same problem: what t2 rom have you flashed? thanks

ALL_SYS_PWRGD 0v