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no r7280 does not have continuity with r0812. i do have vcore 1.7v

820-3437. Was liquid damaged around u7200. pin 30 testpoint was corroded out. i replaced the chip and ran a wire to r7280. i now get fan spin for 15 seconds turns off then back on full speed. no led flashing on pen drive.

00165 it boots up and gets stuck on full progress bar. tried with known good ssd and fresh os. os installs fine, but will not boot. randomly will boot all the way but will be really slow inside 10.15. no damage to the laptop nor any liquid.

removed u4700. short is gone. i'll order u4700 and report back.

I'm aware this is probably going to end up dead cpu, but customer wants data and i want to go through all options before I reflow cpu as last ditch effort to possibly get some data. board is stuck on 5v diode readings on ppbus: .460 ppv3v3r3vo_AON - .02 (beeps) 3V3_G3H - .389

i have led light but no flashing

got donor, programmed it with clean file and still same issue

i ordered a donor board. ill update and let you know.

I have only one a1502 dead board and i have already used the bios from it. I checked r6120-6123 + r6130-31 traces to bios chip and jtag and they all have connection and ohms reading is normal on the resistors themselves. Did I miss anything else I should check? I plugged charger in and they...

So got my new programmer tl866II Plus (i had old tl866) and programed it with a clean file found on: https://boards.rossmanngroup.com/threads/820-00426-a-vcore-present-fan-spin-chime-but-not-turning-on.59760/#post-63082 Did i do this right? Also still getting high fan spin and cpu is getting warm

-sorry i did test for usb activity. i get led light on usb drive but no blinking -PLT_RESET_L comes high? - 3.3v -i've tried reading the bios, but it keeps giving me an error. i'm suspecting this is problem since i'm having trouble reading the bios chip. do i need an exact match of the bios...

came in with no power and spot water damage and corrosion on u7100. replaced u7100 and the corroded resisotors and caps next it to it. now am getting fan spin but no chime. i tried with external monitor as well in smc bypass mode. cpu-vcore - 1.8v ppbus - 12.57v cpu is getting warm.

if i do smc bypass i get pulse of fanspin i get pulse on PLT_RESET_L a little over 1v

l7320 - 1.8 pulse l7310- 1.8 pulse l7630 - 1v pulse l7430 - 1.2v pulse l7560 - 3.3v stable l7130 - 8.6v stable l3095 - 0v no pulse l7701 - 0v no pulse i'm getting a pulse fan spin on smc bypass now

do i have the right pages that you wanted me to test page 57 is - Misc Power Supplies page 58 is - Power FETs

diode mode c7090 - .387 c7098 - .322 d7005 tested against known good and reading are same.

r7006 had a hole in it and was expanded. i replaced it. page 57 is - Misc Power Supplies page 58 is - Power FETs

I tired starting in smc bypass and i got fanspin. but then almost right after something started smoking. i can't find what burned on the board.

they both are pulsing when first plugged in. i think they are going to 3.3v

No pulse at 5V coil when you connect the charger? - i get a pulse when first pluging in 5v. after .01v Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L. - yes drop is in voltage