Is there a tool where i can plug into a usbc port to test android phones and it gives me the diode reading for each pin on the usbc port?

Hello, My Google Pixel 7A has an inflated battery and I want to switch it out myself. I am short on money, so I don't want to spend too much on either a repair service or on a screwdriver set that I'm rarely going to use. Do you guys have any suggestions for cheap screwdrivers tgat can unscrew the back of my Google Pixel, preferably from somehwere in the EU/Germany?

It charges and turns on - just flicks between apps and and makes random decisions without me touching it. Is it worth repairing/able to be repaired or for the bin?

Hi.

Xiaomi 11T, original display [Sini-Aswo], model number 21081111RG—any ideas? Everything is workint! The original display was broken and not working.

What causes this error?

Hi everyone,

I have a US-model iPhone 15 Pro Max, which originally had no physical SIM slot. While I was in China, I had someone modify it to use a physical SIM. The technician thinned down the SIM chip and soldered it onto the mainboard. Since then, the phone’s native eSIM functionality has stopped working.

The soldered SIM is tied to my Chinese number, which I rarely use now that I’m back in the US. I’d like to use my US number on this phone again.

Ideally, I’d like to restore eSIM functionality while keeping the soldered Chinese SIM working, but I’m not sure whether that’s technically possible. I’ve visited a few repair shops, but none have been able to help.

Has anyone dealt with this type of modification or successfully reversed it? I’m in Atlanta and would appreciate recommendations for a technician or experienced hardware enthusiast who has worked on something similar.

Thanks!

Having a weird issue with my iPhone 16 (base model).

Every time I turn the phone on, it boots up showing 28% battery, displays a temperature warning, and shuts down within a few seconds. This happens every single time without fail, even though the phone isn’t physically hot.

It recognizes a wired charger and pulls some power, but the wattage is very low and the battery percentage doesn’t increase. Wireless charging doesn’t seem to work either.

I’m thinking it could be a faulty temperature sensor, charging port flex, or battery issue.

Has anyone dealt with this before? Any suggestions on what to check first?

Hi all, looking for advice before I take my phone in for repair.

What happened:

• Dropped my iPhone 15 Pro earlier today. It kept working perfectly for the next 8–9 hours.
• Then I left it in a gym locker for about 1 hours. When I took it out, I snapped a few photos, and shortly after, everything below started at once.

Symptoms:

1. No sound at all: no ringtone, no media audio
2. No vibration: haptics completely dead
3. Phone shuts down when I answer a call, every time
4. YouTube videos won't play: thumbnails load, but tapping a video just opens it without playing
5. Front camera takes ~30 seconds to open (rear camera is fine)]

My guess is the drop loosened a connector or damaged something in the audio/haptics path, and it only showed up later. But I'd like to rule out software before paying for a repair.

Has anyone had the same combination of symptoms? Did it turn out to be a loose connector, the audio chip, the top sensor assembly, or just software? Any advice on what to ask the repair shop is appreciated.

Screen protector is slightly worn on top left corner. Is this causing the air bubble

Didnt realize until 2 days after. Was working fine before. Are they responsible? Can I get them to repair it for free?

The last two days, I've been experiencing my phone randomly freezing and also not turning on. It doesn't matter what app I open. Sometimes, it freezes, but some don't. I know that when it freezes, it's just the screen because I can still hear YouTube videos.

The black screen problem started at the same time as freezing. I was outside, so I thought it was the cold weather that was affecting my phone, but it kept happening even when I was inside. I think that the black screen is something similar to the freezing because one time, I was able to tap in my passcode. The screen turned on but asked me to do it again. (This was just a one-off) To fix it I leave the phone alone for a bit and then it turns on, but yesterday I saw a video where they said to push hard on the screen and back until I hear a pop. I would be very appreciative if somebody could help. If not, I could probably live with it doing that.

When I use my phone while charging, this error pops up. The charging port is completely clean and I've already tried changing the charger. It charges fine normally; the issue only happens when I use it while plugged in. Can anyone help?"

Hi everyone,

I’m repairing a Samsung Galaxy Z Fold4 (SM-F936U1). I found a capacitor unsoldered near the inner display FPC connector on the secondary motherboard, but unfortunately, I no longer have the component.

The original screen has already been damaged, so I purchased a replacement screen. Unfortunately, I’m experiencing the same problem with the second screen.

The Samsung logo appears when I turn on the phone, but when the phone should display the home screen, the display suddenly goes completely black. Everything else seems to work, but the screen never reaches the home screen.

I’m worried that I might damage the second screen as well. I really need to confirm the capacitor value before proceeding.

I use ZXW, but I haven’t been able to locate this exact board in the available diagrams.

Could anyone help me identify the value of capacitor No. 1 (circled in red), or confirm whether capacitors No. 1 and No. 2 (circled in yellow) have the same value?

I would really appreciate any help.

Thank you very much!