manubali
Member
Last Activity: 01-09-2025, 09:04 PM
Joined: 02-24-2017
Location: Auckland
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BY reflash, do you mean using bios update utility when laptop is booted into. windows, or using rt809f programmer to flash it?... -
Yes, flex cable connected properly, the connector size on battery pcb is smaller than the one on mlb, so no chance of wrong connection....Leave a comment:
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820-01700 burning battery flex cable
Hey everyone, i was hoping if someone have seen this issue before.
This unit came in with liquid damaged mainly on left side cd3217, nand circuit, T2 pmu and battery pcb, replacing above mentioned components and performing dfu revive fixed the issue, but its burning ground pins of battery flex cables (on battery pcb side).
Diode values of data lines are normal and i have tested this on multiple batteries, so this is not faulty battery.
i measured the voltage on those pins and it goes to around 1 volt and then it burns the cable... -
Re: [Help] LG 49LH570T Random Shutdowns
Fixed, After checking for cold/broken solder joints and hair dryer method, i focused on main board, and reflowing XD engine (LGE2111A-T8) BGA chip fixed the issue.
Thanks everyone.Last edited by manubali; 09-21-2023, 11:21 PM.Leave a comment:
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[Help] LG 49LH570T Random Shutdowns
Hi, i was wondering if anyone can help me troubleshoot LG 49LH570T tv, initially it came for no power issue, but after leaving everything unplugged overnight, it started working in the morning when i was about to start diagnostics process.
It will turn on for 10 minutes and will die afterwards, and when i try to turn it on, a solid red LED will come up for few seconds, followed by two short blinks and then it completely shutdown, i have examined power supply and main board for visible damage or shorts, but its all fine.
The power supply PCB number is EAX66851401 REV 1.0.
One...Last edited by manubali; 09-21-2023, 06:58 PM. -
lenovo yoga 3 14"
hi, i have a Lenovo yoga NM-A381, the main issue is that it will turn on first time when i disconnect the battery and power it on with adapter, after that when i shut it down, it won't boot again, the fans will spin for few seconds then they stop and keeps on looping. this machine turns on itself when power is connected(just like MacBooks) when power is connected for first time, all the voltages are fine, but after shut down and pressing power button, "EC_ON" jumps from 3.3v to 3.6 to 3.8v and this causes "+3VLP" to jump to 3.6 to 3.8v aswell and "+3VALW" drops to... -
da0d13mbcd1 no vcc_gfxcore
I have a dell xps that came in with no power issue, i found that cap on1.05v_vcc was short and resistor was burnt down, i reported it and got that voltage back, now when i press power button, its keyboard backlight comes up, but there is no display at all, then i checked vcc_gfxcore line and it was missing. Did some online research and found that gfx core comes up after board have completed posting, i have flashed bios and ec firmware, but nothing changed, -
Re: New Members - please post your introductions here
I am manu from nz, i work as technician in local repair shopLeave a comment:
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