Translation Bulgarian - English

My phone battery drains really fast!

⟐ Edited May 25, 2026 at 17:55 MST

⟐ Commented May 23, 2026 at 18:27 MST

First time opening up a phone, and I used the full kit that came with my battery. Its an s21+. I was looking to replace the battery + charging port, cause the port was on its absolute last legs, and the battery just cause. I followed the s21+ guides for battery + charging port, I think the only difference is that the loud speaker assembly + sim needed to be removed too for the charging port.

I put everything back together, but Psim is no longer detected. I use US Mobile, and my particular network can't be transfered to esim.

I have no experience so I'm just leaving some places where I may have messed up.

• dipped my ifixit triangle pick into 70% iso-alc. It was a bit of a drive, and my phone was already broken open, I heard online that 90%+ is heavily advised. I dipped the pick in to introduce some alcohol to the battery adhesive, after... (next step)
• I heated the phone multiple times with the iOpener. flipped the phone, and placed the iOpener on the screen side to try and loosen the battery adhesive. maybe I loosened something with all that heat application? I did it maybe 4x?
• yanked heavily on the suction while trying to jam the pick under the battery. I tried to only hold the phone by its outer frame during that time (maybe I dislodged something during all those attempts?)
• improper electrostatic discharge: I didn't have a band on or discharge regularly during the process
• stabbed a lot of things into the sim card tray. my phones sim tray was really hard to trigger, so I tried the plastic tip tool, screwdriver heads, and finally the pointed tweezers. (maybe damaged the sim tray/internals?)
• Sloppy adhesive placement: I used the ifixit cut-out frame adhesive, and applied it a little sloppily. maybe some adhesive is obstructing/shorting something towards the outer edges of the phone?

Things I've tried:

• I've already tried reseating all the ribbon cables, and turning the phone on after reseating a few to see if a firmer application helped.
• placed sim card in another phone. the sim card isn't the problem
• draining the battery all the way, and recharging (someone on reddit said it helped with their sim detection issues)

Do you guys have any suggestions? I think at this point I may have damaged a component that allows mobile data to work. The reception bars are replaced with a crossed out circle, and it constantly says searching (SIM) around the notification bar.

The only thing that I touch yesterday was my sign in screen which is a pattern. I opened my email icon, read a few messages. I then went into my messages icon to read my texts, read only 2 new texts, then I closed those two items off. When I tried to close it off it wouldn't let me. That's when I got the talkback on a drop down menu and my volume at high with the quickest talkback I've ever heard....

Even when I checked the security settings it wasn't picking

Translation Arabic → English

Why is the mobile phone signal weak at home but strong on the street?

Why is the mobile phone signal weak at home but strong on the street?

⟐ Edited May 18, 2026 at 7:18 MST

Arabic->English translation:

Overheating during use

⟐ Edited May 17, 2026 at 22:26 MST

⟐ Commented May 16, 2026 at 18:05 MST

⟐ Edited by author May 16, 2026 at 17:42 MST