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Search: Posts Made By: MobileXT
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 08-07-2020, 12:33 AM
Replies: 15
Views: 519
Posted By MobileXT
Re: Apple macbook pro A1398 not posting?

It could be a corrupted EFI try find a good working dump EFI and reflash it.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 05-31-2020, 12:22 AM
Replies: 5
Views: 254
Posted By MobileXT
Re: Desperately want to fix my dead for 4 year laptops please help

If you don't have a charging light then, you have a missing 3.3v power rail.
Forum: Schematic Requests ONLY! 05-25-2020, 02:10 AM
Replies: 1
Views: 458
Posted By MobileXT
Re: boardview schematics 820-4652-A

Anyone like to share I need a schematic and board view too.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-25-2020, 01:11 AM
Replies: 3
Views: 440
Posted By MobileXT
Re: A2159 820-01598-06, charging but not running from batt

your battery is shot from the water damage
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-25-2020, 01:06 AM
Replies: 2
Views: 181
Posted By MobileXT
Re: MBA 820-00165 Pulses S0 State then off again every 3sec.

check the high current sensing resistors if they read by specs.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-25-2020, 01:00 AM
Replies: 1
Views: 259
Posted By MobileXT
Re: Macbook Pro A1502 (820-4924-A) beeping, no signs of water damage.

check the voltage of the RAM if present. If present then reflow all the RAM chips.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-25-2020, 12:54 AM
Replies: 3
Views: 266
Posted By MobileXT
Re: 820-00165A power button not working + RTC problem

Did you try another known working keyboard?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-25-2020, 12:50 AM
Replies: 11
Views: 375
Posted By MobileXT
Lightbulb Re: A1707 no CPU Vcore

Do you have PPBUS_G3H?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 08:29 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

Put your multimeter at Diode Mode and Red on ground and Black at Pin 6 U7090 or PIN 1 at C7091 check if you have shorted.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 08:25 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

Check the resistance should be 10 ohms
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 08:17 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

Your U7090 is dead you need to replace the chip
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 07:44 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

If you have 14.75V at Pin 6 U7090 replace U7090
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 07:39 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

Sorry Check first R7006 and R7005
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 07:38 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

Also check for shorted on that power rail. IF you don't have shorted then you can replace U7090
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 07:29 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

You need to fix your PP3V42_G3h first.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 07:21 PM
Replies: 8
Views: 262
Posted By MobileXT
Re: Macbook no life a1278 board 820-2327

your PPBus_G3H is low suppose to be 12.54v check that power rail. I'm guessing you have a PP3V42_g3H present.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 07:18 PM
Replies: 18
Views: 405
Posted By MobileXT
Re: 820-3435 No power / light

Do you have a PP3v42_G3H?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 02:50 AM
Replies: 7
Views: 339
Posted By MobileXT
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 02:42 AM
Replies: 10
Views: 462
Posted By MobileXT
Re: Macbook air 820 - 00165 turn on, when arrive at the User password turn off

Check the resistor R7122 and R7121 they should be 10 ohms.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 02:30 AM
Replies: 4
Views: 810
Posted By MobileXT
Re: 820-00045-A NO Display

What voltage you get at the backlight FUSE?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 02:21 AM
Replies: 12
Views: 463
Posted By MobileXT
Re: MBP 820-3787 no green light

SMC_BC_ACOK 0V then you need to replace your ISL6259 chip
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 02:16 AM
Replies: 8
Views: 262
Posted By MobileXT
Re: Macbook no life a1278 board 820-2327

what is voltage on PPBUS_G3H without the battery?
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-05-2020, 02:13 AM
Replies: 4
Views: 326
Posted By MobileXT
Re: 820-2849 No POST

It could be a Bios Issue
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-01-2020, 12:13 AM
Replies: 8
Views: 490
Posted By MobileXT
Re: 820-00840 bootloop

also check your PP3v42_G3H if you have a constant 3.42v if fluctuate that could be the reason for a boot loop. Also check you SMC_RESET_L you should have a 3.42v.
Forum: Troubleshooting Laptops, Portable, and Mobile Devices 04-01-2020, 12:11 AM
Replies: 8
Views: 490
Posted By MobileXT
Re: 820-00840 bootloop

if you have a 12.54v on PPBUS_G3H then your CD3215 should be ok
Showing results 1 to 25 of 67

 
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