I’m glad I was able to help some people with this! But I have no idea where would be the best place to link to the post.
No, as its missing the real solution/workaround (reboot) and I added the info reg the ticket to the post marked as solution as you should see.
Well not sure what happend for sabbel but the number of 7 should be fine, and is how it normally for all A/B devices
Not sure you understood well his post.
That’s not the number of attempts that’s important here, but the way someone’s doing it.
I do not see any post marked as solution here, hence me asking you to make @SarahFP the one.
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It was marked as solved someone removed that.the post you mentioned still is not the one thats to be marked. So I will now mark it again as solved for the third time.
I also again manipulated Sarahs post, what really dont like to do that much.
I’ve attempted rebooting so many times. I also read on here someone found rebooting faster worked so I did ten consecutive immediate reboots ( phone didn’t even do the logo animation). I’m still bricked. I put a ticket in on Monday and haven’t gotten a reply. I’m at my wits end. I need help or I’m going to give up on the Fairphone mission.
Ummmm, you used the “normal” support way ?
If yes, maybe try to use the link done specially for this issue given in that post :
PS : maybe try to wait a little more after a reboot to reboot again, just don’t wait for the green “I” screen of death appears for rebooting, the person who told that we must wait more said he did reboot on the first Fairphone splash screen.
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Thank you, I will try that tonight when I am at my phone again. I will let you know.
okay I tried ten consecutive reboots by starting to hold the power button at the first splash screen. still no luck.
I followed the link and submitted a new ticket there. thanks for trying
I tried a dozens times to get back to Android 14 via some 10 times reboot, without success. Suddenly it booted once in Android 15. I checked fingerprint sensor, but it is defect. Luckily I surpassed the stricter hardware checks during boot by accident. I hope the update, that skips regular the stricter hardware checks during boot for a needless sensor will come soon.
I have the FP5, and a broken fingerprint sensor.
Did the android 15 update yesterday, and it was bricked, then after the 7x restart was rebooted to A14. However, I turned off my phone in the evening as per usual, and now it’s bricked again, and can’t manage to reboot it to Android 14 with the tricks mentioned above.
I’ve gone through the troubleshooting file. I hope itll be fixed soon 
. Love my Fairphone
I have exactly the same problem. I have a fairphone 5 and my fingerprint sensor has been broken since April and I only heard back from support a few days ago. During the update my phone froze during booting like described, but at some point worked again (still on Android 15 as far as I can tell, I didn´t check). Today my battery was empty and when trying to start it again after charging I ran into the same problem again however this time no amount of rebooting works anymore. I have tried rebooting several times in all the ways described (taking out the battery before, rebooting as soon as the fairphone logo appears, rebooting 7 times or more) but non of it worked.
I went through the trouble shooting tool, but am posting here aswell in hope someone has another solution as I am currently doing fieldwork in a very remote place at the other end of the world and urgently need my phone for data collection 
.
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Hello
Just thinking aloud, was it then avoidable? Like some users reported issues with a fingerprint sensor, would it be imaginable to send them all a message prior to the upgrade?
I understand adding a warning to the release notes might feel a bit too much even though it would also be helpful.
I learnt not to install any major upgrades in a haste, while abroad and without a proper backup, I also think waiting a few days to check the first user reports won’t harm but I also imagine for some users it feels pretty natural to press yes for install once the message pops up.
I am not writing to cry over spilt milk, more to check up the process in terms of future upgrades, as there should be A15 for FP4 and obviously more upgrades for FP5 and FP6. Have there been any reports/support tickets on broken fingerprint sensors for FP4 for example? Would it be advisable to run any internal test for hardware before installing the major update?
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The thing is that the support specifically told me that it should be updated to Android 15 to tackle the fingerprint sensor issue. That´s why I did it although being abroad without another phone.
That’s truly sad, am very sorry to hear that
I waited a few days, and since the update was not recalled by Fairphone I believed, I could run it. I still urge fairphone to recall this dangerous update.
One thing I forgot in my original post that might be helpful: when I originally updated to Android 15 (and the reboot worked after initial freezing), the very first screen unlock worked with the fingerprint sensor. I thought the issue might indeed have been solved with the update, but after locking the screen again it showed the usual “fingerprint sensor hardware not availiable”. So I guess somehow the fingerprintsensor must have shortly worked which led to the reboot working without falling back to Android 14.
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I don’t know how is wired sensor but maybe some “broken” sensors are only false contact?