I somewhat understood some of the Chinese text on the phone (I speak a little bit of Cantonese). Changhong is a really ironic name for this type of phone ngl.
4:02 po-- ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch ch 5:50 chi chi chi chi chi chi chi chi chi chi chi chi chi chi chi chi chi 3:44 sel-- el el el el el el el el el el el el el el el el el el el el 6:05 yin ho, shake in sha for yiao-- ################################################################### 6:35 yin ho, shake- rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
1:49 is my favorite because it TOTALLY sounds like sample you'd hear in glitchcore music; like anything from SHimaU or Reizoko Cj would make- with all the short 3 second combined samples and random loud noises all randomly spliced together, I love it lul
The only reason I could think that it does this is that the quick removal and reinsertion of the battery is causing the processor to lock up and repeating whatever was in the buffer at the time.
It also involves the charger, I imagine removing the battery while having the phone plugged in causes it to crash, probably due to the CPU not being able to run off the power the USB provides