# FP4 bricked upon 5.5 beta tester update **URL:** \ **Category:** System and Apps\ **Tags:** Fairphone4\ **Created:** [13 September 2024 05:54 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986 "2024-09-13T05:54:20Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 05:54 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/1 "2024-09-13T05:54:20Z")
Hello Iodé, The 5.5 beta update was installed yesterday night at 2300 AMS time. After install, the system called for a reboot. I started the reboot, I got no error messages whatsoever. Thereafter the system did not boot, Phone is stuck at a Faiphone screen, but does not get any further, How can I revert to previous version. **It’s a a brick now.** ---
**Author:** ![vince31fr](https://community.iode.tech/user_avatar/community.iode.tech/vince31fr/32/13_2.png) [@vince31fr](https://community.iode.tech/u/vince31fr)\ **Post date:** [13 September 2024 08:55 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/2 "2024-09-13T08:55:48Z")
We’re currently investigating the issue, sorry for that broken beta build. To revert to a previous version, you must install LineageOS recovery (iodé one does not permit to install a previous version), and sideload version 5.4. Or, wait a couple of hours, maybe a new update will be proposed. ---
**Author:** ![Knowbody](https://community.iode.tech/letter_avatar_proxy/v4/letter/k/ecd19e/32.png) [@Knowbody](https://community.iode.tech/u/Knowbody)\ **Post date:** [13 September 2024 10:10 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/3 "2024-09-13T10:10:51Z")
Where is the zip file for 5.4 again? And would [this](https://download.lineageos.org/devices/FP4/builds) recovery (version 21.0-20240911-nightly) work? ---
**Author:** ![vince31fr](https://community.iode.tech/user_avatar/community.iode.tech/vince31fr/32/13_2.png) [@vince31fr](https://community.iode.tech/u/vince31fr)\ **Post date:** [13 September 2024 10:45 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/5 "2024-09-13T10:45:12Z")
Yes for the recovery. > **[FP4 · master · ota / release · GitLab](https://gitlab.iode.tech/ota/release/-/tree/master/FP4)** > > GitLab Community Edition ---
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 11:03 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/6 "2024-09-13T11:03:15Z")
Thanks confirming receipt of the issue. I appreciate that it may take some time on your side to solve the matter. I attach two screens. One is the screen that I get after starting the phone. The other is the FP4 screen that is stalled. Usually the next screen is the Iodé start screen. That does not emerge. At this state of brickiness I do not know how to follow up your recommendations. The phone won’t connect to my PC by any means (e.g. cable does not create a link). So adb is not available. The previous beta version is still on the phone. However I do not know how to access it. Any suggestions? ![Reboot_Bootloader](https://community.iode.tech/uploads/default/original/2X/0/0807cb48df89f2255d105c8348e97ca9a9356268.jpeg) ![StalledStartScreen](https://community.iode.tech/uploads/default/original/2X/2/2bd7022c51be7f55c1fe7d4ed7349eb2d1f06e6d.jpeg) ---
**Author:** ![Knowbody](https://community.iode.tech/letter_avatar_proxy/v4/letter/k/ecd19e/32.png) [@Knowbody](https://community.iode.tech/u/Knowbody)\ **Post date:** [13 September 2024 11:51 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/7 "2024-09-13T11:51:08Z")
Well, I got mine to boot again after it switched itself to slot b (the 5.5 update was installed to slot a) But if you’re going to go the route of using the lineage recovery and reflashing 5.4, you need to use fastboot commands after booting to the bootloader ---
**Author:** ![vince31fr](https://community.iode.tech/user_avatar/community.iode.tech/vince31fr/32/13_2.png) [@vince31fr](https://community.iode.tech/u/vince31fr)\ **Post date:** [13 September 2024 12:13 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/8 "2024-09-13T12:13:57Z")
A fixed beta build is available here: [iode-5.5-20240913-FP4-ota.zip · master · ota / betas · GitLab](https://gitlab.iode.tech/ota/betas/-/blob/master/iode-5.5-20240913-FP4-ota.zip). From the fastboot screen, you should be able to boot to recovery, and then sideload this build. ---
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 12:18 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/9 "2024-09-13T12:18:15Z")
Hi Vince, I might need some more detailed instructions. I found the recovery ![Drawing1](https://community.iode.tech/uploads/default/original/2X/c/cc9d73599a02feb65cd79696264cea3495f5689a.jpeg) ---
**Author:** ![vince31fr](https://community.iode.tech/user_avatar/community.iode.tech/vince31fr/32/13_2.png) [@vince31fr](https://community.iode.tech/u/vince31fr)\ **Post date:** [13 September 2024 12:23 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/10 "2024-09-13T12:23:15Z")
From the screen of your first picture: press volume up several times until you see “Recovery” in red, then press power. Once in the recovery, go to “Apply update”, then “Apply from ADB”. Start the sideload from computer: adb sideload iode-5.5-… ---
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 12:33 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/11 "2024-09-13T12:33:31Z")
Inside Revovery, 2 possible actions: ADB sideload Cancel And at the bottom of the screen: “Now send package you want to apply to the device with etc…” Challenge: How to get the PC see the device? It is plugged in (cable). However, PC does not see it ![recovery](https://community.iode.tech/uploads/default/original/2X/4/41e92614cc548833ddede79e234037253f1794e2.jpeg) ---
**Author:** ![vince31fr](https://community.iode.tech/user_avatar/community.iode.tech/vince31fr/32/13_2.png) [@vince31fr](https://community.iode.tech/u/vince31fr)\ **Post date:** [13 September 2024 12:40 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/12 "2024-09-13T12:40:03Z")
Fairphone recommends these drivers for windows: [https://adb.clockworkmod.com/](https://adb.clockworkmod.com/) ---
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 13:10 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/13 "2024-09-13T13:10:52Z")
OK, Vince, still trying… Please note the last time I used adb was when I put Iode on this FP4. It feels like 100 years ago. Greetz ---
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 13:27 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/14 "2024-09-13T13:27:45Z")
Great! It’s running again. Thanks for fast response Greetz! ---
**Author:** ![vince31fr](https://community.iode.tech/user_avatar/community.iode.tech/vince31fr/32/13_2.png) [@vince31fr](https://community.iode.tech/u/vince31fr)\ **Post date:** [13 September 2024 13:57 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/15 "2024-09-13T13:57:41Z")
You’re welcome. And sorry for the broken build… beta-testing may by a bit risky 😉 ---
**Author:** ![Roland](https://community.iode.tech/user_avatar/community.iode.tech/roland/32/482_2.png) [@Roland](https://community.iode.tech/u/Roland)\ **Post date:** [13 September 2024 14:00 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/16 "2024-09-13T14:00:33Z")
I hope it gave you some useful feedback! ---
**Author:** ![f.limi](https://community.iode.tech/letter_avatar_proxy/v4/letter/f/919ad9/32.png) [@f.limi](https://community.iode.tech/u/f.limi)\ **Post date:** [13 September 2024 19:12 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/17 "2024-09-13T19:12:24Z")
Hi, I tried the way described above: adb Sideload wasn´t possible. So i flashed LineageOS recovery to downgrade to IodeOS 4.5: not working. Tried to sideload iode-5.5-20240913-FP4-ota.zip (still LineageOS recovery): ERROR: recovery: failed to verify whole-file signature Update package verification took 75.5 s (result 1). ERROR: recovery: Signature verification failed ERROR: recovery: error: 21 Installing update… Step 1/2 Error applying update: 7 (ErrorCode: :kInstallDeviceOpenError) ERROR: recovery: Error in /sideload/package.zip (status 1) Install completed witch status 1. Installation aborted ---
**Author:** ![Citroniais](https://community.iode.tech/user_avatar/community.iode.tech/citroniais/32/236_2.png) [@Citroniais](https://community.iode.tech/u/Citroniais)\ **Post date:** [13 September 2024 19:20 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/18 "2024-09-13T19:20:33Z")
Hi there, I had this issue when sideloading. I tried with this version [iode-5.5-20240913-FP4-ota.zip · master · ota / betas · GitLab](https://gitlab.iode.tech/ota/betas/-/blob/master/iode-5.5-20240913-FP4-ota.zip) When I try to reboot, it’s always stuck on the Fairphone logo. Note: I’m on Ubuntu 24.04 and did `sudo apt install adb fastboot` in order to get adb and fastboot working ---
**Author:** ![Citroniais](https://community.iode.tech/user_avatar/community.iode.tech/citroniais/32/236_2.png) [@Citroniais](https://community.iode.tech/u/Citroniais)\ **Post date:** [13 September 2024 19:27 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/19 "2024-09-13T19:27:39Z")
I just tried again twice, and it always crashes at 47% of the sideload on my Ubuntu terminal. Here’s a picture of what’s on my FP4: ![IMG_20240913_211837](https://community.iode.tech/uploads/default/original/2X/1/10b088eb98cab596457c2c9b4f4e72f826044883.jpeg) ---
**Author:** ![f.limi](https://community.iode.tech/letter_avatar_proxy/v4/letter/f/919ad9/32.png) [@f.limi](https://community.iode.tech/u/f.limi)\ **Post date:** [13 September 2024 19:33 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/20 "2024-09-13T19:33:15Z")
same picture here. 🤷 using windows platform-tools ---
**Author:** ![Citroniais](https://community.iode.tech/user_avatar/community.iode.tech/citroniais/32/236_2.png) [@Citroniais](https://community.iode.tech/u/Citroniais)\ **Post date:** [13 September 2024 19:43 UTC](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986/21 "2024-09-13T19:43:37Z")
Hi @f.limi, You mentioned earlier that you also had some signature errors, if I don’t mistake. Do these showed when you tried to downgrade, or also when you tried to install iode-5.5… ? [Next page](https://community.iode.tech/t/fp4-bricked-upon-5-5-beta-tester-update/2986.md?page=2)