i cannot desolder this with the equipment that i have. i tried on some scrap board to test my skill, it ended in a disaster.
i will try some more with the soldering iron.
i will try some more with the soldering iron.
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It may be better to seek the help of a local phone repair tech. There should be some in your local malls.
On the posted pics, it appears that you have a SD card reader IC that is the square chip and these parts near the USB connector. Most likely these parts near the USB connector are a USB load switch (acts like a solid state fuse which should trip if an excessive current draw is active on the connector) and a TVS ESD array to suppress high speed transients from damaging the USB host controller. Either way, USB load switches and TVS ESD arrays do become defective and cause events like yours. We are removing these parts to see if they are shorted or not.Comment
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I have three identical-spec 820-01700 boards (2.6/32/512), and ALL THREE boards came to us with the same fault, from different sources: The boards don't wake from hibernation with the keyboard or lid, they ONLY wake when you press the power button. I understand this is a very minor issue, but the boards must be fixed!
We will of course begin with the obvious (checking lid signals), but I couldn't help but notice these three boards were all 32GB variants. Has anyone noticed an issue relating to these 32GB boards in particular? I of course don't think it's a RAM issue, but it's bizarre... -
Hi everyone,
got an Acer Helios 500 Laptop (PH517-51) for diagnosing with a strange issue:
The laptop runs for a while (1-2 hours, sometimes less) and then suddenly shuts completely off, like someone pulled the power cord and restarts immediately after on its own.
If this happened once, then the laptop only runs for a few minutes until restart.
This happens regardless while staying in windows or uefi or in a linux environment.
At first I thought of a normal overheating issue, but as I monitored temps with HWInfo64, nothing seems very hot.
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