I Woke up to a dead FP4

When I went to sleep last night my FP4 was in perfect condition. I hadn’t installed any special OS, I hadn’t even ever booted into fastboot or recovery.

When I awoke this morning, the phone was off (despite being plugged in all night) and when I turned it on, it just sat there with the spinning blue logo.

I plugged it into my computer in the hopes of diagnosing what was up, and I got the stock Android warning that my phone was “corrupted”.

It now boots perpetually into what I think is recovery (Big green “Start” at the top that can be rotated to different options with volume-down). No matter what option I select though, it always takes me back to this menu.

I can’t stress enough that I’ve never done anything to this phone that’s special other than installing NewPipe and Element from F-Droid. I have no idea how this happened, or how to fix it.

Can someone please tell what I can do to fix this? Obviously I’d prefer not to wipe everything if it can be avoided.

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It could be that the phone decided to install the recent update automatically. Something may have gone wrong. If a factory reset/ROM reinstall helps and is possible, go for it. The alternative is maybe to send the phone back. I don’t think you can retrieve any data, other than stuff on the SD card if you used it as external storage.


Are you still able to get to the actual boot process (the blue dot)? If you are, the first thing to try would be Safe Mode.
When the blue dot appears press Vol. Down, that will boot you into a mode with all 3rd party apps disabled. That way we can at least rule out that this is caused by one of the installed apps.

Since you haven’t modified your phone, most of the other ways will involve a factory reset unfortunately :pensive:

That’s what I fear as well :grimacing:


The blue dots don’t appear anymore :frowning: Now no matter what I do, I get Fastboot Mode (I thought it was recovery, but I see now the dark-red-on-black header: “Fastboot Mode”).

I’d rather not send this back if it can be avoided as the turn-around time would likely be weeks. If my option option is to wipe it, then I guess that’s it? How do I do that? I assume there’s a page somewhere with the list of fastboot commands to execute?

What happens when you select START in fastboot (bootloader)? :thinking:

Since you didn’t modify your phone (unlock the bootloader), there aren’t actually a lot of usable fastboot commands for us to try.

To wipe it, just select Recovery mode in fastboot, there’s the option to “Wipe data/factory reset”.

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Actually, when I select Recovery Mode, it just shuts off and boots back into FastBoot Mode!

Might it be possible to try to boot the alternative slot via

fastboot --set-active=a
fastboot reboot


fastboot --set-active=
fastboot reboot

or it that not possible on a phone with locked bootloader?

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Unfortunately it looks like my previous decision not to do anything custom to my phone might be the problem here:

# fastboot --set-active=a
Setting current slot to 'a'                        FAILED (remote: 'Slot Change is not allowed in Lock State
fastboot: error: Command failed

Assuming there’s no way to recover any of the data, can I get to a working phone from where I am without sending it back?

Oh, that doesn’t sound great, not great at all :roll_eyes:

Could you post the output of fastboot getvar all

Not without a unlocked bootloader.


Not that I understand the output, but here you go:

# fastboot getvar all
(bootloader) parallel-download-flash:yes
(bootloader) hw-revision:10000
(bootloader) unlocked:no
(bootloader) off-mode-charge:0
(bootloader) charger-screen-enabled:0
(bootloader) battery-soc-ok:yes
(bootloader) battery-voltage:4196
(bootloader) version-baseband:
(bootloader) version-bootloader:
(bootloader) erase-block-size: 0x1000
(bootloader) logical-block-size: 0x1000
(bootloader) variant:SM_ UFS
(bootloader) partition-type:modemst2:raw
(bootloader) partition-size:modemst2: 0x600000
(bootloader) partition-type:modemst1:raw
(bootloader) partition-size:modemst1: 0x600000
(bootloader) partition-type:tunning:raw
(bootloader) partition-size:tunning: 0x600000
(bootloader) partition-type:fsc:raw
(bootloader) partition-size:fsc: 0x20000
(bootloader) partition-type:fsg:raw
(bootloader) partition-size:fsg: 0x280000
(bootloader) partition-type:fpconfig:raw
(bootloader) partition-size:fpconfig: 0x20000
(bootloader) partition-type:fpconfig_persist:raw
(bootloader) partition-size:fpconfig_persist: 0x20000
(bootloader) partition-type:traceability:raw
(bootloader) partition-size:traceability: 0x100000
(bootloader) partition-type:ALIGN_TO_128K_2:raw
(bootloader) partition-size:ALIGN_TO_128K_2: 0x1A000
(bootloader) partition-type:swversion:raw
(bootloader) partition-size:swversion: 0x20000
(bootloader) partition-type:oembin:raw
(bootloader) partition-size:oembin: 0x400000
(bootloader) partition-type:catecontentfv:raw
(bootloader) partition-size:catecontentfv: 0x100000
(bootloader) partition-type:catefv:raw
(bootloader) partition-size:catefv: 0x80000
(bootloader) partition-type:secdata:raw
(bootloader) partition-size:secdata: 0x7000
(bootloader) partition-type:uefivarstore:raw
(bootloader) partition-size:uefivarstore: 0x80000
(bootloader) partition-type:storsec:raw
(bootloader) partition-size:storsec: 0x20000
(bootloader) partition-type:logdump:raw
(bootloader) partition-size:logdump: 0x4000000
(bootloader) partition-type:cateloader:raw
(bootloader) partition-size:cateloader: 0x200000
(bootloader) partition-type:logfs:raw
(bootloader) partition-size:logfs: 0x800000
(bootloader) partition-type:toolsfv:raw
(bootloader) partition-size:toolsfv: 0x100000
(bootloader) partition-type:limits-cdsp:raw
(bootloader) partition-size:limits-cdsp: 0x1000
(bootloader) partition-type:limits:raw
(bootloader) partition-size:limits: 0x1000
(bootloader) partition-type:splash:raw
(bootloader) partition-size:splash: 0x20A4000
(bootloader) partition-type:spunvm:raw
(bootloader) partition-size:spunvm: 0x800000
(bootloader) partition-type:apdp:raw
(bootloader) partition-size:apdp: 0x40000
(bootloader) partition-type:dip:raw
(bootloader) partition-size:dip: 0x100000
(bootloader) partition-type:devinfo:raw
(bootloader) partition-size:devinfo: 0x1000
(bootloader) partition-type:fsgbk_b:raw
(bootloader) partition-size:fsgbk_b: 0x280000
(bootloader) partition-type:core_nhlos_b:raw
(bootloader) partition-size:core_nhlos_b: 0xAA00000
(bootloader) partition-type:uefisecapp_b:raw
(bootloader) partition-size:uefisecapp_b: 0x200000
(bootloader) partition-type:imagefv_b:raw
(bootloader) partition-size:imagefv_b: 0x200000
(bootloader) partition-type:featenabler_b:raw
(bootloader) partition-size:featenabler_b: 0x20000
(bootloader) partition-type:dtbo_b:raw
(bootloader) partition-size:dtbo_b: 0x1800000
(bootloader) partition-type:vbmeta_b:raw
(bootloader) partition-size:vbmeta_b: 0x10000
(bootloader) partition-type:vbmeta_system_b:raw
(bootloader) partition-size:vbmeta_system_b: 0x10000
(bootloader) partition-type:recovery_b:raw
(bootloader) partition-size:recovery_b: 0x6000000
(bootloader) partition-type:qupfw_b:raw
(bootloader) partition-size:qupfw_b: 0x14000
(bootloader) partition-type:devcfg_b:raw
(bootloader) partition-size:devcfg_b: 0x20000
(bootloader) partition-type:boot_b:raw
(bootloader) partition-size:boot_b: 0x6000000
(bootloader) partition-type:keymaster_b:raw
(bootloader) partition-size:keymaster_b: 0x80000
(bootloader) partition-type:dsp_b:raw
(bootloader) partition-size:dsp_b: 0x4000000
(bootloader) partition-type:abl_b:raw
(bootloader) partition-size:abl_b: 0x100000
(bootloader) partition-type:mdtp_b:raw
(bootloader) partition-size:mdtp_b: 0x2000000
(bootloader) partition-type:mdtpsecapp_b:raw
(bootloader) partition-size:mdtpsecapp_b: 0x400000
(bootloader) partition-type:bluetooth_b:raw
(bootloader) partition-size:bluetooth_b: 0x200000
(bootloader) partition-type:modem_b:raw
(bootloader) partition-size:modem_b: 0xC300000
(bootloader) partition-type:hyp_b:raw
(bootloader) partition-size:hyp_b: 0x80000
(bootloader) partition-type:multiimgoem_b:raw
(bootloader) partition-size:multiimgoem_b: 0x8000
(bootloader) partition-type:tz_b:raw
(bootloader) partition-size:tz_b: 0x400000
(bootloader) partition-type:aop_b:raw
(bootloader) partition-size:aop_b: 0x80000
(bootloader) partition-type:questdatafv:raw
(bootloader) partition-size:questdatafv: 0x1000000
(bootloader) partition-type:fsgbk_a:raw
(bootloader) partition-size:fsgbk_a: 0x280000
(bootloader) partition-type:featenabler_a:raw
(bootloader) partition-size:featenabler_a: 0x20000
(bootloader) partition-type:core_nhlos_a:raw
(bootloader) partition-size:core_nhlos_a: 0xAA00000
(bootloader) partition-type:uefisecapp_a:raw
(bootloader) partition-size:uefisecapp_a: 0x200000
(bootloader) partition-type:imagefv_a:raw
(bootloader) partition-size:imagefv_a: 0x200000
(bootloader) partition-type:dtbo_a:raw
(bootloader) partition-size:dtbo_a: 0x1800000
(bootloader) partition-type:vbmeta_a:raw
(bootloader) partition-size:vbmeta_a: 0x10000
(bootloader) partition-type:vbmeta_system_a:raw
(bootloader) partition-size:vbmeta_system_a: 0x10000
(bootloader) partition-type:recovery_a:raw
(bootloader) partition-size:recovery_a: 0x6000000
(bootloader) partition-type:qupfw_a:raw
(bootloader) partition-size:qupfw_a: 0x14000
(bootloader) partition-type:devcfg_a:raw
(bootloader) partition-size:devcfg_a: 0x20000
(bootloader) partition-type:boot_a:raw
(bootloader) partition-size:boot_a: 0x6000000
(bootloader) partition-type:keymaster_a:raw
(bootloader) partition-size:keymaster_a: 0x80000
(bootloader) partition-type:dsp_a:raw
(bootloader) partition-size:dsp_a: 0x4000000
(bootloader) partition-type:abl_a:raw
(bootloader) partition-size:abl_a: 0x100000
(bootloader) partition-type:mdtp_a:raw
(bootloader) partition-size:mdtp_a: 0x2000000
(bootloader) partition-type:mdtpsecapp_a:raw
(bootloader) partition-size:mdtpsecapp_a: 0x400000
(bootloader) partition-type:bluetooth_a:raw
(bootloader) partition-size:bluetooth_a: 0x200000
(bootloader) partition-type:modem_a:raw
(bootloader) partition-size:modem_a: 0xC300000
(bootloader) partition-type:hyp_a:raw
(bootloader) partition-size:hyp_a: 0x80000
(bootloader) partition-type:multiimgoem_a:raw
(bootloader) partition-size:multiimgoem_a: 0x8000
(bootloader) partition-type:tz_a:raw
(bootloader) partition-size:tz_a: 0x400000
(bootloader) partition-type:aop_a:raw
(bootloader) partition-size:aop_a: 0x80000
(bootloader) partition-type:ALIGN_TO_128K_4:raw
(bootloader) partition-size:ALIGN_TO_128K_4: 0x1A000
(bootloader) partition-type:ddr:raw
(bootloader) partition-size:ddr: 0x100000
(bootloader) partition-type:cdt:raw
(bootloader) partition-size:cdt: 0x20000
(bootloader) partition-type:ALIGN_TO_128K_1:raw
(bootloader) partition-size:ALIGN_TO_128K_1: 0x1A000
(bootloader) partition-type:xbl_config_b:raw
(bootloader) partition-size:xbl_config_b: 0x20000
(bootloader) partition-type:xbl_b:raw
(bootloader) partition-size:xbl_b: 0x380000
(bootloader) partition-type:xbl_config_a:raw
(bootloader) partition-size:xbl_config_a: 0x20000
(bootloader) partition-type:xbl_a:raw
(bootloader) partition-size:xbl_a: 0x380000
(bootloader) partition-type:userdata:ext4
(bootloader) partition-size:userdata: 0x377E72E000
(bootloader) partition-type:super:raw
(bootloader) partition-size:super: 0x180000000
(bootloader) partition-type:rawdump:raw
(bootloader) partition-size:rawdump: 0x20CCCD000
(bootloader) partition-type:oempersist:raw
(bootloader) partition-size:oempersist: 0xC800000
(bootloader) partition-type:metadata:raw
(bootloader) partition-size:metadata: 0x1DE0000
(bootloader) partition-type:frp:raw
(bootloader) partition-size:frp: 0x80000
(bootloader) partition-type:keystore:raw
(bootloader) partition-size:keystore: 0x80000
(bootloader) partition-type:misc:raw
(bootloader) partition-size:misc: 0x100000
(bootloader) partition-type:persist:raw
(bootloader) partition-size:persist: 0x2000000
(bootloader) partition-type:ssd:raw
(bootloader) partition-size:ssd: 0x2000
(bootloader) partition-type:ALIGN_TO_128K_3:raw
(bootloader) partition-size:ALIGN_TO_128K_3: 0x18000
(bootloader) has-slot:modem:yes
(bootloader) has-slot:system:no
(bootloader) current-slot:a
(bootloader) has-slot:boot:yes
(bootloader) slot-retry-count:b:6
(bootloader) slot-unbootable:b:yes
(bootloader) slot-successful:b:yes
(bootloader) slot-retry-count:a:7
(bootloader) slot-unbootable:a:yes
(bootloader) slot-successful:a:yes
(bootloader) slot-count:2
(bootloader) secure:yes
(bootloader) serialno:9a229361
(bootloader) product:FP4
(bootloader) snapshot-update-status:none
(bootloader) is-userspace:no
(bootloader) max-download-size:805306368
(bootloader) kernel:uefi
Finished. Total time: 0.011s

Both slots are marked as unbootable, that’s definitely not a good sign :roll_eyes:
I fear there’s not a lot we can do here without access to low level tools (see this topic).

It might be time to #contactsupport , sorry :pensive:

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That’s very distressing, but thank you for your help. I’ll reference this post in my conversation with them.

I just don’t understand. I was literally sleeping when this happened!

Yeah, I know the feeling, I lost a tablet a similar way a few weeks ago. Just randomly rebooted and the flash got corrupted beyond repair.

This might still be related to the new update being applied without so much as a prompt for some people, so hopefully Fairphone can get this fixed fast!


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