Nokia 8110 Bootstrap (custom init-script for command execution on boot) / telnet / swap / ...

[speeduploop]

Hi!

I now created a zip-update for creating a custom-init.

bootstrapon.zip does the following:

-- create '/data/opt' as a persistent folder with easy access. (rights are set in a way that you can adb push/pull files/folders to /data/opt)

-- create '/data/opt/init' --> a shell-script which will be executed at boot. Here you can insert commands which should run at every boot.

-- link '/data/opt/init' in existing boot-script.

The init script which is created by this is:

#!/system/bin/sh

#################################################################

# uncomment the following 2 lines to enable existing swapfile...

#################################################################

#swapon /data/opt/swapfile

#swapoff /dev/block/zram0

#################################################################

busybox telnetd -l /system/bin/sh -b 127.0.0.1

It doesn't do much but starting telnetd (you should uninstall my telnet-hack if you use this bootstrap).

Commands for using a swapfile instead of zram exists but aren't enabled.

Why swapfile? zram is swap as a compressed ramdisk - fast but it's reserving about half of the physical RAM.

If you use a swapfile instead of zram you have more physical RAM for caches and usable RAM is also bigger.

(apps aren't killed for low-memory as often as without swap)

BUT: if you want to use a swapfile you have to create one first! This is how...

adb shell

busybox telnet localhost

busybox dd if=/dev/zero of=/data/opt/swapfile bs=1024 count=524288

busybox mkswap /data/opt/swapfile

exit

exit

After this you have created a 512MB swapfile.

Now to enable it:

adb pull /data/opt/init

and uncomment (delete the '#') the two swap-related lines with a editor of your choosing. (on Windows Notepad++ has options to respect Linux-LineEndings...)

Then:

adb push init /data/opt/init

adb chmod +x /data/opt/init
adb reboot

will push it back and adjusts the execution-rights. (whenever you push a modified init-file --> adjust the execution-flag or it won't start at boot)

After the reboot you have 1GB in total (512 RAM + 512 swap) and more space for caching (IO, File, ...)

bootstrapoff.zip will clean things up --> /data/opt and it's contents will be removed!

Other thing you could do with this: modify the RAM-Disk ('/') at every boot - for example to switch the 'adbd-binary'...

(my very first root-hack for the 8110 worked this way - it had a patched adbd in /data/opt/bin and linked it as /sbin/adbd on boot)

This bootstrap is btw my normal config since nearly the beginnig - the 'simple' telnet-hack was only because it should be easier to use for the community :D

Happy Hacking!

[AdvancedHACKERniV1]

Great Work !!

[Zhang Bird]

Good job !!! 👍

[Ivan]

It don't works for me:

Recovery mode/update from SD/bootstrapon.zip......installation aborted!

Tryed with and without telneton.zip from the shell:

afther busybox dd if=/dev/zero of=/data/opt/swapfile bs=1024 count=524288  error, no file or directory

never pulled out files from /data, never have permissions. I don't know if the problem come from OmniJB installed in /system, but I don't think.

[syl...@rentoo.immo]

is /data mounted ?

does the directory /data/opt exists ? if not (busybox mkdir /data/opt)

[speeduploop]

-- you don't need telneton.zip
-- I forgot to mention --> please mount /system before!

[speeduploop]

bootstrapon.zip creates /data/opt and /data/opt/init...

[Ivan]

hi,after made every update from sd installations are aborted. error in sideload. is not positive this thing.

[speeduploop]

So you are on v13? Then it's obvious.... update to v13 changes keys --> no way back!

[Ivan]

No,i'm still on v12. i've successful installed bootstrapon.zip mounting /system. now i'm not at home. when i come back i'll made that commands from adb shell on PC and let you know. thanks

[Ivan]

all seems to be working correctlly, no problems at the moment

[speeduploop]

no... something is wrong. left is you - right is me...

It seems like on your device is still zram active...

Could you show me:

cat/proc/swaps
cat/data/opt/init
ls -la /data/opt

This should tell whats wrong...

[Ivan]

[speeduploop]

Your init-script isn't executable... ;)

adb shell
chmod +x /data/opt/init

then reboot - and everything should work.

BUT: don't forget - don't use telneton.zip and bootstrapon.zip together --> telnetd is started by /data/opt/init :D

On Sunday, 2 December 2018 14:17:09 UTC+1, Ivan wrote:

[Ivan]

PERFECT!

THANK YOU!

[speeduploop]

yeah... this is how it should be ;)

BTW: 512MB seems to work even better than 1G (which I tested before)

You'll see that apps you started before (and so are cached) startup faster now - and big apps won't kill everything else (only if they are really, really big).

-- switching apps is more fun now :D

Fun thing --> even slither.io know works (somehow) :D

On Sunday, 2 December 2018 14:31:46 UTC+1, Ivan wrote:

PERFECT!

THANK YOU!

[Ivan]

Is really fast! It is more like a smartphone now! GREAT JOB!!! :D

[Backwood]

Sounds cool! Is there a chance this will break future updates?

[speeduploop]

It will definitely break ota-updates... it changes the system-partition.

(it's ok for me because the new v13 changes keys also - so it's unrootable at the moment)

--> if you dump a system-image before this you could go back if needed...

[Backwood]

Oh sorry, didn't catch that earlier. I'm already doomed with vr 13.x
Well played Nokia.

[Ivan]

Then made a factory reset, or flash your phone with my /system copy with version 12.00.17.10 already jailbroken ;)

[speeduploop]

-- I never got v12.00.17.10 only v12.00.17.06... seems region-specific.

-- And if he is already on v13 keys are changed and he can't flash zips anymore...
-- factory-reset doesn't reset firmware-version

----> if one installed v13 there is no going back at the moment :(

[AdvancedHACKERniV1]

A stock rom is the only solution. But there is currently no stock rom available for the 8110.

[speeduploop]

The problem is not the stock rom -- because you can create it yourself (if you can get hands on a clean/unmodified device with v12/test-keys)

--> the problem is that v13 can't even use such a stock rom....

[AdvancedHACKERniV1]

What I meant was flashing the stock ROM with QFIL via EDL.

[AdvancedHACKERniV1]

This might be helpful.

https://flash-file-download.com/mobile/nokia-8110-4g/flash-file

[AdvancedHACKERniV1]

What is this ??

https://www.youtube.com/watch?v=CXvEOinhStg

[lujos...@gmail.com]

There is no leak for the stock firmware for 81104g! You can connect to edl with

 adb reboot edl

but we dont have the right programmer file !!! to flash with qil tool!!!

[speeduploop]

You can boot to QDL-Mode by holding all direction-keys at power-on also. --> screen will just flash shortly then goes dark.

(just press the DPAD until 'second click' -- first click is select, a little more and the edge of your thumb will press the DPAD-frame...)

--> Linux then shows (lusb)

Bus 001 Device 049: ID 05c6:9008 Qualcomm, Inc. Gobi Wireless Modem (QDL mode)

But yes: we would need a firehose-downloader for our device...

On Monday, 3 December 2018 18:27:58 UTC+1, lujos...@gmail.com wrote:

There is no leak for the stock firmware for 81104g! You can connect to edl with

 adb reboot e

[AdvancedHACKERniV1]

This might work.

It is the firehorse programmer for the MSM8909.

But this is the programmer used for a Jio Phone which has an MSM8905.

I also read on Qualcomm's page that Snapdragon 205 (MSM8905) and Snapdragon 210 (MSM8909) are pin to pin compatible.

This file came with Jio Phone F50Y's stock ROM which is flashed through EDL.

On Monday, December 3, 2018 at 11:08:53 PM UTC+5:30, speeduploop wrote:

You can boot to QDL-Mode by holding all direction-keys at power-on also. --> screen will just flash shortly then goes dark.

(just press the DPAD until 'second click' -- first click is select, a little more and the edge of your thumb will press the DPAD-frame...)

 

But yes: we would need a firehose-downloader for our device...

[speeduploop]

Thanks.... this could work.

I'll check - when I have time ;)

[AdvancedHACKERniV1]

Your Welcome.
But be careful....
Firmware stuff....

[speeduploop]

exactly... I sometimes think it would make sense to get a second 8110... one for messing around ;)

[AdvancedHACKERniV1]

Yeah.

You are right.

These might also be helpful.

There are also from Jio Phone F50Y's stock ROM.

I think they can be used with the 8110 4G but they must be modified according to the respective partition's needs.