FP2 Won't turn on or charge - See first post for troubleshooting

Dear Community,
Since this morning (4:55 pm in Germany right now) I have a strange problem with my battery.
My phone did not charge during the night and had only 5 % when I woke up.
I plugged my USB - Cable in and had to realize that it does not charge. It also turned of immediatly. I tried out different cables and power adapters but none worked.
I thought my phone has a normal loose connection so I tried different positions for my Phone do charge (sorry for bad explanation & english, but I think you know what I mean).

The phone started charging when I pressed down the cable a little bit but it did not work continiously. My phone was in a kind of bootloop:

  1. The Fairphone logo appears
  2. It starts charging with 0%
  3. It loads until the third bar & crashs
  4. repeat

So I opened my phone and built off the bottom module in hope it does not fit correctly.
It didn’t make any change so I searched for a solution in this forum and found this thread:

I followed the steps. I had to push the cable down with one hand all the time, because no struggling position could hold the charge. Suddenly the charging status jumped from 0% to 50% and the LED light turned yellow. Right now I am sitting here writing this comment with my right hand while holding the “charging construction” on my left hand.
The display stays black, so the “bootloop” stopped and the led switches between a continuous red and yellow every few minutes.

Update: The led switches between red yellow and green during the charge as well as the 0, 50 and 100 % status! The phone gets in a bootloop when I try to restart (1. Vibration, 2. Fairphone Logo, 3. Reboot)

I hope it’ll charge normally when I restart the phone in a few minutes and you can help me finding the cause of the problem if it does not. My 2 years warranty is over and I would buy a new battery or bottom module but I travel to India for three months in one week and definitely need my phone fixed!

I am sorry for my faulty english and my super long text
Thanks to all who answer me!

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