Hardware Nintendo switch lite bq24193, USB port overheat

cdfertolo

New Member
OP
Newbie
Joined
Mar 4, 2021
Messages
2
Trophies
0
Age
24
XP
46
Country
Italy
Hi, I'm new here I'm from Italy. I'm sorry for my bad English.
I bought a faulty Nintendo Switch lite from EBay. It doesn't power on and It doesn't charge. Nothing on the screen.

After inspect the motherboard, I found
a little capacitor with a solder bridge with another cap, right above the mt92. I already fix it.

I measure the voltage at the battery: 2.72 Volt.

I check for short along the board and I only found a very low resistance on both sides (3 ohm and 0 ohm) on a capacitor near bq24193 chip.

I tried to charge it with four different phone charger and the official charger.

With two of them and with the official charger the motherboard draws 5.22 volt and 0.00 amp.

With the other two, it draws 4.92 Volt and 1.45 Amp, and suddenly the bq24193 chip became really hot. Also the USB port and the metal shield above it became hot but they’re colder than the bq24193 chip.

Does anybody have any advice on what I can check or do to try fix it?



Thank you very much!

Some images from the motherboard:
IMG-20210303-WA0019.jpg
IMG-20210303-WA0021.jpg
IMG-20210303-WA0022.jpg
IMG-20210303-WA0018.jpg
 

thesjaakspoiler

Well-Known Member
Member
Joined
Nov 20, 2018
Messages
988
Trophies
0
Age
124
XP
1,500
Country
Afghanistan
I don't know if you replaced the bq24193 chip.
If the bq24193 chip gets hot, that usually means that there is still a short.
Also the fact that the original charger does gives you 0 amps indicates it has shut itself off because it thinks that something went wrong.

There are a lot of videos on Youtube where people much more skilled than me give a lot of advice about how to repair this and which capacitors to check:
 

cdfertolo

New Member
OP
Newbie
Joined
Mar 4, 2021
Messages
2
Trophies
0
Age
24
XP
46
Country
Italy
I don't know if you replaced the bq24193 chip.
If the bq24193 chip gets hot, that usually means that there is still a short.
Also the fact that the original charger does gives you 0 amps indicates it has shut itself off because it thinks that something went wrong.

There are a lot of videos on Youtube where people much more skilled than me give a lot of advice about how to repair this and which capacitors to check:

Hi, thank you for your reply.
Unfortunately I found four missing pads under bq24193 chip.
BQ24193 after M92 change and nintendo charger.jpg

The lifted pad are 15, 16, 22, 21.
Anyone have the diagram of it?
Or is this unfixable?
Thank you!
 

Site & Scene News

Popular threads in this forum

General chit-chat
Help Users
  • Xdqwerty @ Xdqwerty:
    @BakerMan,i only watched anime
  • BakerMan @ BakerMan:
    for anyone wondering what that is, basically, it's about the one person in the world without magic, instead he's just dummy strong
  • BigOnYa @ BigOnYa:
    Dr. What and Dr. Where got lost together somewhere in time, Dr. When is looking for them
    +1
  • BakerMan @ BakerMan:
    What about Dr. How?
  • BakerMan @ BakerMan:
    OR DR. WHY?
  • O @ OhHiNick:
    @Xdqwerty sorry i get excited when i get to see what type of laser the wii u uses
  • AncientBoi @ AncientBoi:
    They ALL went to Nurse Why's house
  • BakerMan @ BakerMan:
    fun fact: SCPs started from some Dr. Who fanfic or smth on 4chan
  • BigOnYa @ BigOnYa:
    Dr How and Why, will be in the prequel
    +2
  • Xdqwerty @ Xdqwerty:
    @BakerMan, or dr when
  • O @ OhHiNick:
    dr what
    +1
  • AncientBoi @ AncientBoi:
    ooohhh the steamy scene with Nurse Why. omg :blush:
    +1
  • BigOnYa @ BigOnYa:
    @Xdqwerty is Dr. Wut
    +2
  • BigOnYa @ BigOnYa:
    My wifey gets mad and tells me its a bad habit to bite your nails, even though I told her I washed my feet first.
  • Psionic Roshambo @ Psionic Roshambo:
    Dr Strange is a gynecologist for prostitutes.
    +2
  • Psionic Roshambo @ Psionic Roshambo:
    Going where lots of men have gone before
    +2
  • Xdqwerty @ Xdqwerty:
    @BigOnYa, i tear off my nails
  • BigOnYa @ BigOnYa:
    Nuh it was a joke, but I used to bite my nails when I was young, but when I started doing construction work and seen what crap was under my nails, I stopped.
  • Xdqwerty @ Xdqwerty:
    What i said isnt a joke
  • BigOnYa @ BigOnYa:
    Sometimes yea when they get real long, you want to, but I always end up with a bloody finger or hangnails.
  • K3Nv2 @ K3Nv2:
    Well that's 30 minutes worth of complaining
  • BigOnYa @ BigOnYa:
    They send you the wrong STD medicine again?
  • K3Nv2 @ K3Nv2:
    Only person I've been with was your wife so
  • BigOnYa @ BigOnYa:
    She carrier #1, so she immune
    BigOnYa @ BigOnYa: She carrier #1, so she immune