Hardware Nintendo switch wont charge (BQ24193 chip changed)

[innorammara]

Hi,
it seems i have a Nintendo switch that wont charge at all.
I bought on ebay and the guy told me that it never turned on,
Connecting the charger I see 0mA through it. Opening it I saw few capacitors shorted around the BQ24193 chip, but after changing it I see no differences.
I have checked some capacitors here and there, near the BQ24193 and M92T36 and they seems OK.

Don't see what else could I check.... :/

 

[TariqSoftDev]

Hi,
it seems i have a Nintendo switch that wont charge at all.
I bought on ebay and the guy told me that it never turned on,
Connecting the charger I see 0mA through it. Opening it I saw few capacitors shorted around the BQ24193 chip, but after changing it I see no differences.
I have checked some capacitors here and there, near the BQ24193 and M92T36 and they seems OK.

Don't see what else could I check.... :/

Use an external charger if the battery voltage is below 2.8v, once it's up see if it's possible to run hekate, using hekate use the tools to check IC info and if the IC is still at fault or any issues it'll show -0mA to +1mA on charging and the IC will display temp as HOT as soon as you put it on charge and NORMAL when off charge.

 

[innorammara]

Use an external charger if the battery voltage is below 2.8v, once it's up see if it's possible to run hekate, using hekate use the tools to check IC info and if the IC is still at fault or any issues it'll show -0mA to +1mA on charging and the IC will display temp as HOT as soon as you put it on charge and NORMAL when off charge.

I forgot to say that I even plugged in a known good battery and nothing works...

 

[TariqSoftDev]

I forgot to say that I even plugged in a known good battery and nothing works...

Alright, as soon as I'm home from college if you want, I can help via Discord and we can both go through finding the issues in the circuit.

 

[innorammara]

Alright, as soon as I'm home from college if you want, I can help via Discord and we can both go through finding the issues in the circuit.

Would be awesome.
Tell me when you can...

 

[mattytrog]

Use an external charger if the battery voltage is below 2.8v, once it's up see if it's possible to run hekate, using hekate use the tools to check IC info and if the IC is still at fault or any issues it'll show -0mA to +1mA on charging and the IC will display temp as HOT as soon as you put it on charge and NORMAL when off charge.

Not all issues will show in Hekate.

Indeed it can still be faulty when apparently no fault is found (ie the i2c info is still being sent back and forth correctly).

Check in the components used in the switch thread. I have highlighted the components around BQ24193.

I need to add... What chip did you replace it with? RGER / RGET? Check the thermistor testpoint (where we check for USB voltage fitting chips). Those resistors are VERY close to it. Make sure nothing is bridged. I`ve seen plenty of BQ24193 replaced by people who have partially blew components away.

Caio!

 

[innorammara]

Not all issues will show in Hekate.

Indeed it can still be faulty when apparently no fault is found (ie the i2c info is still being sent back and forth correctly).

Check in the components used in the switch thread. I have highlighted the components around BQ24193.

I need to add... What chip did you replace it with? RGER / RGET? Check the thermistor testpoint (where we check for USB voltage fitting chips). Those resistors are VERY close to it. Make sure nothing is bridged. I`ve seen plenty of BQ24193 replaced by people who have partially blew components away.

Caio!

I've replaced it with the RGET Version... btw i've checked every resistor near the BQ24193.... nothing seems to miss

 

[innorammara]

Ok, I received help from @TariqSoftDev , the M92T36 IC was faulty.
Not an easy fix though, both BQ24193 and M92T36 were broken, so meh, THANKS A LOT, and thanks for tollerating my bad skillz at soldering.
Very nice guy.

 

[Leoxama]

Not all issues will show in Hekate.

Indeed it can still be faulty when apparently no fault is found (ie the i2c info is still being sent back and forth correctly).

Check in the components used in the switch thread. I have highlighted the components around BQ24193.

I need to add... What chip did you replace it with? RGER / RGET? Check the thermistor testpoint (where we check for USB voltage fitting chips). Those resistors are VERY close to it. Make sure nothing is bridged. I`ve seen plenty of BQ24193 replaced by people who have partially blew components away.

Caio!

Hi, I am having a similar issue. What thermistor test points are you talking about? I did not notice there were different versions of bq24193, what happens if you use the RGER and the original one is RGET of vice versa? How can you identify the version?