External battery charger for Librem5

[Quarnero]

I think that you gave your best to recover your Librem 5 from cannot power on state, please reach out for professional help at support@puri.sm, as you and @carlosgonz supposed already it seems like some particular hardware issue (I just hoped it isn’t).

@librem5

Should vid and pid be what’s listed in lsusb?

Didn’t check yet, but I think it should.

uuu -lsusb
uuu (Universal Update Utility) for nxp imx chips – lib1.4.193

Connected Known USB Devices
Path Chip Pro Vid Pid BcdVersion
==================================================
2:1 MX8MQ SDP: 0x1FC9 0x012B 0x0001

[librem5]

Yes checking with support as well.

And looks like vid and pid can be different, thanks for checking.

[librem5]

jumpdrive is not really able to mount eMMC.
Can you point to SD card with SO steps or something?

[Quarnero]

@librem5

And looks like vid and pid can be different, thanks for checking.

I do not agree at this point as my phone VID and PID are the very same ones as yours.

[librem5]

@Quarnero

I do not agree at this point as my phone VID and PID are the same.

Sorry I meant vid and pid mentioned in .lst file:
U>CFG: SDP: -chip MX8MQ -compatible MX8MQ -vid 0x316d -pid 0x4c05

[Quarnero]

@librem5

-vid 0x316d -pid 0x4c05

USB Vendor ID 316D recognizes Purism, SPC as the USB Vendor and manufacturer of devices. For example Librem key PID is 4C4B.

[carlosgonz]

@librem5

jumpdrive is not really able to mount eMMC

It fine that Jumpdrive can not mount the eMMC because the eMMC it CORRUPTED, but Jumpdrive can expose the memory(eMMC) for gnu-tools “parted” to formating to clean.
I not sure how Jumpdrice work on Librem 5, because i never needed. give me some time then i can troubleshooting .

[Quarnero]

@carlosgonz

but Jumpdrive can expose the memory(eMMC) for gnu-tools “parted” to formating to clean.

Yes I hope that too:

@Quarnero

Please post here output of:
sudo fdisk --list /dev/sdb −− the one referring to eMMC, after L5 mounted with JumpDrive

sudo parted /dev/sdb
GNU Parted 3.4
Using /dev/sdb
Welcome to GNU Parted! Type ‘help’ to view a list of commands.
(parted) p
Model: JumpDriv e eMMC (scsi)
Disk /dev/sdb: 31.3GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number Start End Size Type File system Flags
1 5243kB 493MB 488MB primary ext2 boot
2 493MB 31.3GB 30.8GB primary ext4

(parted) q

[carlosgonz]

Wow good job! Thank you @Quarnero
@librem5 you can use too the app “gparted” for easy for you, just delete all partitions to clean of the emmc-L5

[Quarnero]

@librem5, please check out if this page helps to you any further: https://arm01.puri.sm/job/u-boot_builds/.

[librem5]

Should jumpdrive finish with success ?

@Quarnero

sudo fdisk --list /dev/sdb

It never shows eMMC. (same with gparted)

sudo fdisk --list /dev/sdb
fdisk: cannot open /dev/sdb: No medium found

[carlosgonz]

I not sure how Jumpdrive work on Librem 5, maybe the Jumpdrive for Librem 5 depend on a good eMMC if so then Jumpdrive will not work with you. As I said before i not tested Jumpdrive to Librem 5 yet, seem it work different than Pinephones.
@Quarnero how you runned Jumpdrive on your L5? Like you burned a sd card with jumpdrive or you just run the jumpdrive in your computer then plugged to L5 on flash mode?

[librem5]

Ah yes I know how to run jumpdrive on Pinephone.
But for Librem5 instructions are:
1. Put phone in flash mode
2. Run boot-purism-librem5.sh

shell script is basically uuu script

[Quarnero]

@librem5

Should jumpdrive finish with success ?

Yes it should, here is picture of ready to be used: Can't use L5 after update!. As root user:
./boot-purism-librem5.sh
uuu (Universal Update Utility) for nxp imx chips – lib1.4.193

Success 1 Failure 0

2:1 3/ 3 [=================100%=================] SDPV: jump
3:1 10/10 [Done ] FB: Done

When Jumpdrive successfully executed do you see with: sudo fdisk --list (should show all your drives/partitions) Librem 5 eMMC?

[Quarnero]

@carlosgonz

or you just run the jumpdrive in your computer then plugged to L5 on flash mode?

This is correct procedure. Extract Jumpdrive archive and run things from my computer.

[Quarnero]

@librem5

boot-purism-librem5.sh

Within same folder, interestingly (informatively) very same VID and PID are within purism-librem5.lst (inside of Jumpdrive extract folder):
CFG: FB: -vid 0x316d -pid 0x4c05
CFG: SDP: -chip MX8MQ -compatible MX8MQ -vid 0x316d -pid 0x4c05

[carlosgonz]

I remembered that jumdrive depend of the kernel-emmc of the Librem 5 to boot, but i not sure.
So we need @joao.azevedo here to know how boot sd card with SO on Librem 5 to rescue.

[Quarnero]

Now I understand why another VID and PID. @carlosgonz, thanks a lot for this information!

[joao.azevedo]

@carlosgonz

I remembered that jumdrive depend of the kernel-emmc of the Librem 5 to boot, but i not sure.

jumpdrive uses it’s own kernel to boot, so it can boot even if the kernel on the Librem 5 is trashed.

So you can use these instructions up to point 9:

Can't use L5 after update!

Steps to perform: On your computer with GNU/Linux system: Install the package uuu, on PureOS and other Debian based systems, from a terminal run the command: sudo apt install uuu Open terminal and run command: mkdir jumpdrive && cd jumpdrive (creates new folder and changes location to it) Download: wget https://github.com/dreemurrs-embedded/Jumpdrive/releases/download/0.8/purism-librem5.tar.xz Unpack: tar -xf purism-librem5.tar.xz Put the Librem 5 in uuu mode: Ensure that the phone is sw…

@carlosgonz

So we need @joao.azevedo here to know how boot sd card with SO on Librem 5 to rescue.

This can be done with a version of u-boot that I am not sure if it is still experimental or if it is already shipped by default. I’ll need to check.

[librem5]

@joao.azevedo

So you can use these instructions up to point 9:

jumpdrive doesn’t finish though, it’s stuck.