16-11-2019 01:41 PM in
26-07-2020 03:53 PM in
The problem with my phone was solved by replacing the battery. As I explained above: I might have had a different problem all along. Still it might help to just unplug the battery for 30 minutes or to replace it (new ones cost around 15 € - it is not that difficult to replace).
21-03-2021 11:56 PM in
Same problem on mine, shutting down randomly and hard to restart, sometimes doesn't start with the charger connected, I wait a few minutes and it works again, so annoying, my battery seems fine, it doesn't go out fast. And % are okay. .
22-03-2021 10:42 AM in
The issues with my phone were fixed after replacing the charging connector inside the phone: https://www.mytrendyphone.eu/shop/samsung-galaxy-a40-charging-connector-flex-cable-248127p.html
(This is the first link that came up with search: do not know if it is a good place to buy one. I bought mine via eBay).
It is something possible to do your self, but there is a danger of breaking the phone electronics in the opening process.
Replacement batteries are sold together with the DIY "phone opening kits": it would make sense to replace the battery also once the phone is open.
07-04-2021 03:05 PM in
Still the same problem with the new charging connector, direct shutting down randomly, hard to restart (need to wait a few minutes or it doesn't light on at all) and sometimes stop charging at about 80% (writted "charging" but % are not going up) and I need to reconnect the usb cable to continue chargiing. i'll try to replace the battery in a few days..