Recent content by Bad Apple

No I was not joking. I searched for SMC Bypass for over three hours only finding chatter explaining suggesting doing a bypass, but nothing on how to actually do it. I found this by accident while searching another problem I'm having with a MBA that has a battery issue...

I was finally able to get time to do the reball. Sorry for the delay in responding but I am alone dealing with clients and the repair work. The SMC reball did not change anything. It was clean. It sure would have been nice to have tried an SMC bypass first, but It seems that is a closely...

PCH_INTRUDER_L = @R1301 = 3.0v PCH_INTVRMEN @R1302 = 3.2v Thanks, I will reball SMC tomorrow It would be a big help for future diagnostic if you could advise on How to do an SMC Bypass.

I am confused about how to do an SMC bypass. I found something about triggering the smc_reset_L and thought that might be the way. Can you give me a hint how to do the SMC bypass? Not finding anything about how to do it, just chatter about doing it. PCH_CLK32K_RTCX1 @ U1900 = 0.376v PCH...

Hi 2informaticos, Thanks for the tips, and yes it was a mistype. Actual reading is .... PM_SLP_S4_L @R1461 = 0v PP3V3_SUS @R1581 = 3.3v PM_BATLOW_L @R1410 = 3.3v PM_RSMRST_L @R8133 = 3.3v PM_PWRBTN_L @R1802 = 3.4v No reaction at PM_PWRBTN_L when short SMC_ONOFF_L @R5115 I did get a pulse...

Green Amber light ok ? No Power, No corrosion, No spill, Clean board. Customer claims it simply refused to start. Sorry if it seems I am all over the place....still at an early stage repairing boards and I've been trying whatever I could find searching the forum. I tested the following Rails...

I'm with the test everything group and agree with PCTRONICS about the dreaded returning customer. I also use a word document with a checklist that I go over with the customer upon pickup. It takes five minutes to run the manual peripheral test as opposed to ASD. (See attached Doc) I keep a copy...

I had one that wasn't recognizing internal SSD same as OP. I followed Dukes instruction and focused on Capacitors C3710 and up. I couldn't figure out how to do a continuity test without an extra set of arms or soldering a jumper wire to each Cap so I re-flowed them and it worked. I never would...

I fixed the trackpad problem. It was the R4830. It tested ok and was clean but I decided to reflow it.

The trackpad & keyboard works ok with option key for selective startup. I inspected this board thoroughly for corrosion several times.

I tried another LIO board and flex - no change It's now missing the trackpad and keyboard, they come back sometimes on a restart but quickly fail. I tried another trackpad and keyboard - no change. Tried re-balling the SMC with no change. Replaced ISL6259 with no change.

The Battery that shows up in OS is not stable. It now complains with the Lightning bolt at start up with fully charged battery. This battery that works was probably just a bit different from the rest allowing the OS to see it. While no charger is connected coconut says it is charging and the...

Sorry I was away from the lab. I tested original battery on another 820-00165 board from inventory and it spins the fans. SCL = 3.2v - 3.3v Pulse SDA = 3.1v - 3.4v Pulse Diode Mode = SCL = 0.441 Diode Mode = SDA = 0.440 R6950 is 10K It only starts with one of the five batteries without...

Yes, It only works with one of the A1496 batteries that I had in stock (Original Simplo). It does not recognize its original A1496 battery although coconut battery app shows it has 98% design capacity in other machines. Another strange thing is that it sees the other original A1496 batteries at...

820-00165 History: Liquid spill ? Completely dead when customer brought in. Ultrasonic cleaning Replaced Audio board and cable Result: Starts with Magsafe ?. not seeing battery Reflowed SMC (No Change) Tried other batteries and found 1 out of 5 batteries are detected as normal. All...