Hello,
A customer send me a switch to repair.
So the install was ugly, but I will details.
So there short on cmd , clk line.
2 resistor dead. 2 caps dead. U1 U2
So first I replace the resistor , and the caps.
The short Was still persistent, so I suspect the nand, he reflow, and didn't do well ( nand is skynix )
So i reball the Emmc, console boot on stock firmware, I say ok, it s fixed.
I install this hwfly modchip, green led, so for me it was ok.
Then after reassemble the switch, I show hekate , tell me 0% baterry, and 0 for degrees cpu.
I try to boot stock, then black screen !!!!!
So I make install with few test, I am sure the console working, after solder wire to dat0 ( like I reball ) and reset pin.
So problem is arrive after on front face point to solder.
Anybody have an idea ? I am dumping the Emmc on hekate, he detect, I will verify the dump for see.
When I am on hekate, he detect cable charging, then 1 seconde after that disappear.
Chipnx screen tell me too battery is at 0% on No sd screen.
Temperature doesn't appear to hekate, dump of the nand work, so it s very frustrating , is someone can help ?
Problem solved.
1: I change fuel gauge ic, that don't correct the problem. I took one from fat version of switch.
2 : I make a reflow ( real reflow ) so temperature come back and batterie issue is fix.
A customer send me a switch to repair.
So the install was ugly, but I will details.
So there short on cmd , clk line.
2 resistor dead. 2 caps dead. U1 U2
So first I replace the resistor , and the caps.
The short Was still persistent, so I suspect the nand, he reflow, and didn't do well ( nand is skynix )
So i reball the Emmc, console boot on stock firmware, I say ok, it s fixed.
I install this hwfly modchip, green led, so for me it was ok.
Then after reassemble the switch, I show hekate , tell me 0% baterry, and 0 for degrees cpu.
I try to boot stock, then black screen !!!!!
So I make install with few test, I am sure the console working, after solder wire to dat0 ( like I reball ) and reset pin.
So problem is arrive after on front face point to solder.
Anybody have an idea ? I am dumping the Emmc on hekate, he detect, I will verify the dump for see.
When I am on hekate, he detect cable charging, then 1 seconde after that disappear.
Chipnx screen tell me too battery is at 0% on No sd screen.
Temperature doesn't appear to hekate, dump of the nand work, so it s very frustrating , is someone can help ?
Post automatically merged:
Problem solved.
1: I change fuel gauge ic, that don't correct the problem. I took one from fat version of switch.
2 : I make a reflow ( real reflow ) so temperature come back and batterie issue is fix.
Last edited by nerirififi,
what chip is the : fuel gauge ic ?? the max 77812 ?
