Search results

thanks for your time though

damn that sucks, only changed speaker for 80 now need to replace logic board for hundreds :(

Yeah still not powering on. Tested USB and still no LED light :(

I pulled a battery out an A1417 battery and connected to to board with magsafe and monitored PPBUS_G3H voltage with multimeter and it slowly climbs, watched it climb from 12.10-12.70

Im sorry maybe I was testing it wrong. If I plug the magsagfe direct to the board w/o battery I get 12.58-12.6 If I unplug magsafe, attach battery then plug magsafe back in I get 12.89-12.90. Does that matter?

OK changed batteries on multimeter and now its 12.58 w/ and w/o battery connected

Yeah this model is total crap, I hate these models. My exact Voltage is 12.89 w/ and w/o battery connected

ok just making sure as it wasn't slightly increasing, I watched it for about 4mins and nothing but would this be why it wont power on? Is the battery necessary for it power on?

Using multimeter voltage DC setting?

No USB Activity, just flashed new confirmed BIOS and still nothing. Is battery necessary to power on laptop? I tested battery with mulitmeter and it seems ok, how to test if battery is charging if laptop has no power? Using Original 85W magsafe 2 Any ideas?

Oh sorry, here is the read outs from just the board plugged into the magsafe. I just tested again and there are two rails no voltage. But when assembled, No power, no video, no usb activity PPBUS_G3H = 12.6 PPVIN_S5_HS_COMPUTING_ISNS = 12.6 PPVIN_S5_HS_OTHER3V3_ISNS = 12.6 PPDCIN_G3H = 18.5...

I have a 2013 macbook pro, I changed the left speaker, left it on overnight and battery died and is now not powering on. All power rails are present, the only two that are slightly off are ppdcin_g3h and pdcin_g3h_isol which read 18.5v. Any ideas?

board is water damaged. green light no power PPBUS_G3H = 8.6 PPBUS_5V = 8.6 PPDCIN_G3H = 16 PP3V42_G3H = 3.42 PP5V_S5 = 5 PP5V_S0 = 0 PP5V_S4RS3 = 0 PP3V3_S5 = 3.3 PP3V3_S4 = 0.065 PP3V3_S3 = .160 PP3V3_SUS = .008 PP3V3_S0 = .057 Thank you

OK so I checked the resistance of ground on C5388 and it shows .4 Ohms so this is dead board? what does checking this resistance signify? thanks

have a macbook pro board ID 820-2532-A Model A1286 Green Light No Power Using oirginal 85W charger pp5v_s3 =0 pp5v_s0 - 0 pp3v3_s5 = 3.3v C7771 = 1.106v pm_slp_s4_l = missing smc_adapter_en = 3.42v ppdcin = 18.86v ppbus_g3h = 12.60v Any help would be greatly appreciated

lol oops, i dont know why i added question marks to the end of that sentence...job is done thank you

yeah found a bin for same model/emc cleared RegionME, flashed it and problem fixed??

Yeah that sounds like a good place to start. Ive already pulled original and cleared RegionME but still chime loops. So maybe just clearing someone elses BIOS.bin will do the trick. Ill try that and post results. Thanks for the reply

Have an A1398 EMC 2910 Macbook pro , customer said he trying to flash clover on his device and accidentally installed in EFI folder. So i pulled SPI chip and cleared RegionME using these links: https://www.win-raid.com/t596f39-Intel-Management-Engine-Drivers-Firmware-amp-System-Tools.html...

sorry guys been super busy, pulling this one back out. ok so shorting SMC on/off does turn the board on tried another track pad and using a new flex. thank you