How to enable Developer menu / ADB and DevTools on KaiOS by modifying data partition (safe method)
Unfortunately not all KaiOS devices have the same possibilities. To help users better understand which installation method is more suitable for their device, we have classified KaiOS devices based on two difficulty levels: Debug-enabled and locked.
Debug-enabled, for these devices it is sufficient to type one or two codes to enable USB debugging (Nokia phones, Energizer, Positivo, etc...), you can apply the natural sideload methods and the official jailbreak guide for these devices without any problem;
Locked devices have no working codes because blocked by the OEM by default. All devices with a relative loader can be used to flash in EDL mode a data partition image (CAT B35 and Jio Phone first of all).
If your device is locked and without working codes or ADB and DevTools access, this method is for you.
In this guide we need to do is to enable the "developer menu" and ADB if unauthorized/disabled on the device. This should ensure the normal functioning of KaiOS according to the nature of Firefox OS, and without losing updates. The basic requirements are:
Your PC with ADB installed and configured;
A way to get your userdata.img file from your phone (for example using EDL.PY and the correct firehose for your device);
An Hex editor, like wxHexEditor, to read and manage the usedata.img file;
A root shell on your PC.
NOTE: to activate ADB on your device in some cases it is not enough to patch only the data partition. In fact the drivers for ADB are contained within the firmware. This could involve adding another partition to be modified, but more often adding the ADB public key is enough.
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INSTALL OMNISD: The sideload of third-party apps belongs to the nature of Firefox OS which is the heart that beats and moves KaiOS, find out how to do with (or without) the jailbreak guides! - https://ivan-hc.github.io/bananahacke...
BACKUP: Commands and special tools. Protect your device in case of damage. Don't be unprepared, keep ready for adventure! - https://ivan-hc.github.io/bananahacke...
ROOT: Temporary root using our apps (Telnetd, ADBRoot and Wallace), how to create your custom Recovery and enable root permissions on your Firmware using abootimg (for KaiOS and Android)! - https://ivan-hc.github.io/bananahacke...
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KAIOS DEVICES: A complete list of models ideal for tests, those to be discarded and those to be discovered! - https://ivan-hc.github.io/bananahacke...
List for developers / Debug-enabled devices (best KaiOS phones):
for Nokia 8110 4G, Nokia 800 Tough, Nokia 2720 Flip, MTN Smart S 3G, Alcatel Cingular Flip 2 and some Alcatel Go Flip just dial #*#33284#*# to enable the debugging USB, a bug icon should appear in the taskbar;
for Alcatel 3088, Orange Sanza, Nobby 231, Positivo P70S, Energizer E241 & E241s, H242 & H242s, E220 & E220s, H241, H280S, P280s and Tigo Kitochi 4G dial #*#33284#*# and then #*#0574#*# to enable the debugging USB from the menu.
for CAT B35, Jio Phone & Jio Phone 2 no debug code works, use EDL tools.
Blocked devices (no solution found from our researchers):
Alcatel MyFlip / A405DL, Acatel SMARTFLIP, BLU Zoey Smart, Doro 7060 / 7050 / 7070, Hape Online (Ooredoo), Maxcom MK241, Sigma X-Style S3500 sKai and Vodacom Smart Kitochi.
Unknown devices (still no researchers):
Accent Nubia 50K, Africell Afriphone, Zantel Smarta, TECNO T901, Multilaser ZAPP, QMobile 4G Plus, Jazz Digit 4G, Telma Wi-Kif 3G and 4G Plus ...and many more are coming....
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