[SOLVED] Wiko Rainbow Jam seems hard to root: I'm looking for help

[Mister_Dave]

Hi all,

I have a Wiko Rainbow Jam (which is provided with the stock rom "Wiko Rainbow Jam version 8", Android Lollipop 5.1 and the latest updates from Wiko), is about a week that I attempt to root my phone, but I am unable to do this operation, since I am totally unable to mount the /system as RW, and furthermore the bootloader is locked.

Firstly I found this method which consist to write/flash the TWRP custom recovery in place of the original one:
Root method 1
(sorry for the Google Translate link, but I cannot find the same how-to in English)

Which seems similar to this how-to
http://forum.xda-developers.com/showpost.php?p=63803008&postcount=5

But seems that these two methods will wipe/erase everything on my phone, and I would avoid this risk.
I also read that by flashing another custom recovery I will be unable to install updates from Wiko.

Then I tried this method using adb which is more simple:
https://f-droid.org/forums/topic/tutorial-how-to-root-an-android-device/

But when I launch the "adb root" command, all that I get is "adbd cannot run as root in production builds"; so I attempted various workarounds to "fix" adb, but all unsuccesfully.

I have to mention the fact that I have some skills in using Linux and the shell commands: maybe there would be a way to place the "su" binary on my Phone using Linux on my computer, by logging on the phone as root user, by acquiring the needed privileges?

Any help/suggestion/hints would be very appreciate! :good:
Kind regards.

 

[robneymcplum]

I have a mtk6580 phone and also had the root issues, for a while I used kingroot, which rooted fine but I didnt trust it. Then I used supersume to get rid of kingroot which seemed to work but again, wasnt 100% it was all gone. Followed a similar guide to your first link which wasnt working. What worked for me was:

Download the twrp recovery .img file
rename it to recovery.img
open SPflash tools
add your own scatter file from your stock rom
deselect all the boxes except recovery
double click the recovery address box and find the renamed recovery.img
click download
plug your turned off phone in,
let it flash.
reboot into recovery
select reboot system
TWRP will tell you its not rooted and ask to install superSU
swipe for yes
reboot and you are rooted.

NO DATA LOSS

 

[Mister_Dave]

Thank you for this detailed how-to! However, for me, nor kingroot, kingoroot, framaroot and no other apk worked on my phone, so I will attempt to try your method, but first I have some questions:

1): On my phone, under SETTINGS > DEVELOPER OPTIONS, I can see the option “OEM unlocking”: I have to enable this option to permit the flashing of the TWRP img?

2): Is ok to download TWRP from here? dl.twrp.me/i9300/twrp-2.8.6.1-i9300.tar.html

3): "add your own scatter file from your stock rom":
where I can get/grab such file?

4): "TWRP will tell you its not rooted and ask to install superSU":
so TWRP is already provided with the SuperSU utility?

5): To be sure to avoid any risk, here I have a backup of my phone, which was done using "adb backup -apk -shared -all"; in case of emergency I will be able to restore my phone using this backup?

Many thanks for your attention! :good:

 

[Mister_Dave]

3): "add your own scatter file from your stock rom":
where I can get/grab such file?

Ok, seems that such file was available in the first link:
s000.tinyupload.com/download.php?file_id=53888272183191245346&t=5388827218319124534686744

is called MT6580_Android_scatter.txt , can you take a look and tell me if is ok?
Many thanks!

 

[robneymcplum]

1) cant hurt to turn it on, however the phone will be flashed whilst turned off so dont know if its needed, but Im sure I wouldve enabled it.

2) and 3) I dont know what your exact model number etc.. is for your phone, so the twrp you would have to find and check yourself, go here: http://www.needrom.com/category/others/u-v-w-x-y-z/brands-w/wiko/ and you can try to get a twrp from there, and definetely get a stock rom. Use the scatterfile from an 'SP TOOLS FLASHABLE STOCK/UPDATE ROM'

4) yes

5) I dont know, I dont use adb and wouldnt like to say its OK. You can use this: https://play.google.com/store/apps/details?id=com.h3r3t1c.onnandbup&hl=en which will make a TWRP or CWM backup of your entire phone which you can then flash in TWRP or CWM once they are flashed, or get all the data from the backup. I would advise to find this out before trying though, just in case. I personally didnt lose any data, flashed twrp in SPtools, took 5 seconds, rebooted, added SU, rebooted, took 2 minutes and everything was still there.

---------- Post added at 04:43 PM ---------- Previous post was at 04:41 PM ----------

it has to be a scatter file from your exact model of phone, as everything has to match, partitions, nvram...etc... loads of things that can go wrong if the scatter is wrong

 

[Mister_Dave]

2) and 3) I dont know what your exact model number etc.. is for your phone, so the twrp you would have to find and check yourself, go here: http://www.needrom.com/category/others/u-v-w-x-y-z/brands-w/wiko/ and you can try to get a twrp from there, and definetely get a stock rom. Use the scatterfile from an 'SP TOOLS FLASHABLE STOCK/UPDATE ROM'

I went there, but my model is not listed.. As I stated in the subject is a Wiko Rainbow Jam: if i search for Rainbow Jam is such link, no model is displayed..

it has to be a scatter file from your exact model of phone, as everything has to match, partitions, nvram...etc... loads of things that can go wrong if the scatter is wrong

I got the scatter file in the first link "Root method 1", where there is the how-to for my exact model.

 

[robneymcplum]

ah right, in that case, its OK

 

[Mister_Dave]

ah right, in that case, its OK

Ok: it was painless differently from what I thought: now, following your advice (I used the TWRP and the scatter file from the first link) my phone is nicely provided with the root access

EDIT: was necessary to activate the “OEM unlocking” option under SETTINGS > DEVELOPER OPTION, without this option activated, I was unable to flash the TWRP recovery img.

Many thanks!

p.s: If a moderator see this post, feel free to add [RESOLVED] to the title of this thread, since I cannot edit the title.

 

[robneymcplum]

Glad it worked lots of guides I saw also made it excessively complicated, this way took you what? 2 minutes? And am guessing all your data is safe and untouched.

 

[Mister_Dave]

Glad it worked lots of guides I saw also made it excessively complicated, this way took you what? 2 minutes? And am guessing all your data is safe and untouched.

Yeah, it took about 2 minutes, just the time to figure out that I needed the USB OTG cable with an usb mouse and to browse to the UPDATE-SuperSU-v2.76.zip file (as I said I used the TWRP posted in the first link, which doesn't work with the touch screen).

I want to say thank you again for your friendly assistance!

EDIT: Yes: all my data is safe and untouched!

 

[truegammes mc]

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