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Yes battery + charger freezes too!!forgot to say that!! yes, already test slot by slot with different rams "with battery" and freeze! even now i test bat + charge with only ram on 1rst slot, the machine start to beep "NO RAM" and after that i remove the battery plug the charger without touch...

Hey guys, this one with battery plugged freezes on logo apple! But if i run with charger work's well! Already replace the famous capacitor! don't have corrosion,signals off liquids and no one touch ! ideas?? thanks

hey , i have a 820 3476 board working. can i compare the values with each other ?? in your opinion better to measure on diode mode or resistance?? thanks

i check a high pulse to at pin 7 and 3 of U1950| already check for corrosion under scoop but this board are very clean! Doesn't start with SMC bypass mode! =( oyu have more ideas?? thanks

You can close this one!! client with hurry! But this mac don't show any errors on ASD test! i will assume problem on Processor or slot ram with problem! thank you

i can see on pulse high on s3 and s0 lines when i plug the charge as also SMC_ONOFF_L is triggered.

forgot smc reset.. only tried PRAM reset. ok after applied a SMC reset the machines never more Flash the LCD!! i'm listening music on youtube +15 min and looks fine.. But when i shut down the machine and turn on again after 1-2 min i get same problem!! i will try to run ASD! Thanks

Ty for your advice !! PCH_DSWVRMEN = 2.45V PM_DSW_PWRGD = 3.4V yes when i triger smc_on_off i confirm a drop pulse! PM_SLP_S4_L and PM_SLP_S3_L i check a high pulse!!

Hey guys, Working on 820 4924, No signals off water damage and corrusion components. (i'm the first to open this mac). PPBUS_G3H = 12.58 PP3V42_G3H = 3.4V PPVRTC_G3H = 3.3V PP5V_S5 = 5V PP5V_S4 = 0V Diode mode = 0.530v PP5V_S3 = 0V Diode mode = 0.378v PP5V_S0 = 0V Diode mode = 0.390v...

yes stay on!! when i put ASD the Image flash's can't see what the problem is!! some times works well 5 - 10 min some times 10 sec after i turn on!! Already test with a clean_me bios and same history!!!

Hey guys, working on 820 2936, no liquid damage, i'm the first on to disassembly. after 2- 5 min working the image flash,fan's go high and shut down!! Like this vdeo: https://drive.google.com/file/d/16_bFOL6Fb93mYqfpntbjzm48Tp0iGCKz/view?usp=sharing i already try new rams, only one ram in...

Ya, this one before i touch boot's well to operation system but with the battery problem! SMBUS_SMC_BSA_SCL - 425v DIODE MODE SMBUS_SMC_BSA_SDA - 425v DIODE MODE I have 11.54V on PPVBAT_G3H_CONN with charger connect! It's normal PPBUS_G3H goes to 11.54V with battery and charger connect ...

backing on this one, i'm sure, i don't have activity on USB! Already tested diferent rams on 2 ram_modules! PPVCORE_S0_CPU 1.151V don't drop to 1V ... keep on 1.151V. already put the board on ultrasonic!! but no change. you have more ideas ?? thanks

Hey, i was on vacation! i already soldered all pins on RAM SLOT! probably traces to cpu are broken!! Can you advice me one test card to buy please ?? regard's

but it was a big coincidence!! It work's on 4-5 boots! yes i have the same beeps without rams! thanks

Hey, already flashed the bios and first impression i think it's done try to boot with on ram i hear the typical sound try with 2 rams and work too!! i assembly all parts inclusive LCD and when i have all assembled we go to the begin .... =( i already disassembly and flashed the bios again 2...

it is: https://drive.google.com/file/d/157NtF0z5UYTC7VPxC-uMb4EtQqSU6jZi/view?usp=sharing

Hey guys, Anyone know if it possible on Imac's retina replace only the front glass ?? thanks

yes , already verified on amscoop and looks to be fine! do you have a bios for this model?? already check on vinafix and some russians foruns and i dont found! thanks

Hey guys, working on this 820 3482, this on bip's 1 time 5 - 5 sec! Like how don't have rams! i try another good rams and same history... N liquid damage and components removed! any idea ?? thanks