like title: I have a V2 Switch that cannot boot; it shuts down after the first logo (never been modded before).
History of DIY repairs:
This Switch was left unused for two weeks and wouldn't power on and charge, so I attempted repairs myself.
1.Replaced fuse (fuse was blown).
2.Replaced BQ IC; now it can charge but current is stuck at 0.45-0.46A.
3.Replaced fuel gauge MAX17050; current still stuck at 0.45-0.46A.
4.Installed Hekate; can use tools normally.
5.Using AMS CFM/OFM, logo displays then shuts down afterward.
6.Checked EMMC write/read performance using Hekate; it's perfect.
7.Replaced M92T30, but situation remains unchanged.
Could anyone advise on these conditions and suggest what else I should try to fix it?
*Quote from a YouTube video by a netizen.
*I measure this cap (below M92 ) after press power on,
the beginning, measured 1.8V, after a few seconds 0V." (like tune off)
*I suspect there is an abnormality with the MAX77812 during the 2nd boot, but I'm not sure how to confirm this. (red circle measure ~0.6v)
History of DIY repairs:
This Switch was left unused for two weeks and wouldn't power on and charge, so I attempted repairs myself.
1.Replaced fuse (fuse was blown).
2.Replaced BQ IC; now it can charge but current is stuck at 0.45-0.46A.
3.Replaced fuel gauge MAX17050; current still stuck at 0.45-0.46A.
4.Installed Hekate; can use tools normally.
5.Using AMS CFM/OFM, logo displays then shuts down afterward.
6.Checked EMMC write/read performance using Hekate; it's perfect.
7.Replaced M92T30, but situation remains unchanged.
Could anyone advise on these conditions and suggest what else I should try to fix it?
*Quote from a YouTube video by a netizen.
*I measure this cap (below M92 ) after press power on,
the beginning, measured 1.8V, after a few seconds 0V." (like tune off)
*I suspect there is an abnormality with the MAX77812 during the 2nd boot, but I'm not sure how to confirm this. (red circle measure ~0.6v)
