[Tip] Flash Cubot X9 with non-removable battery

[WearySky]

Aaaand one last comment for any other Cubot X9 owners out there - make sure you have the right drivers! On my home PC, one of my drivers is wrong (the preloader driver, I think), so when I try to flash CWM recovery only in SP flash tool, it gets some weird error (which I forgot to write down, but something involving DA not matching up, I think?), and then becomes completely unresponsive. Everything else works (readback works, and format and download of a full rom works, for example), but if you try to flash the CWM created by MTK droid tools with the wrong driver it gets into this weird state. It shows up in device manager as "Mediatek DA USB VCOM Port (COM6)", but flash tools and mtk droid tools don't recognize it when it gets into this state. And here is where the Cubot X9's lack of removable battery becomes a factor, now you just have to wait until the battery dies before you can get back to re-flashing with the right drivers installed. Cubot thoughtfully sealed up the case with pentalobe screws (shakes fist in Cubot's direction), and nowhere local sells pentalobe screwdrivers, unfortunately, so I just have to wait. Super irritating.

[Sniper47]

Thanks for these tips on Cubot X9. I like the run the battery down till it's dead so you can flash it

[fantastico]

Wow, this is so helpful. Thanks, man.

[WearySky]

I'm actually going to write up a quick tutorial on rooting, after my trials and tribulations of the last few days hopefully it can help a few people. But basically, you *have* to do the CWM route (I couldn't find a quick root that worked), and you need an external SD card. But I'll get all the details when I do my tutorial

[ladismantler]

I was able to successfully root when I first got the phone. After doing an OTA update, I can't get into TWRP, even after trying to root again.

Has anyone rooted after doing a OTA update?

[glofish]

Gosh, i've been through a hell 12 hours thinking I bricked my 2 weeks old Cubot.

Having the exact same problem but I do have the set of screwdrivers necessary so popped open the back and disconnected the battery.
My only wonder is where to get right preloader drivers for the Cubot X9?
Thanx for the help

[cookiedough]

Gosh, i've been through a hell 12 hours thinking I bricked my 2 weeks old Cubot.

Having the exact same problem but I do have the set of screwdrivers necessary so popped open the back and disconnected the battery.
My only wonder is where to get right preloader drivers for the Cubot X9?
Thanx for the help

All you need is your stock ROM. How did you brick your phone originally? Do you have your stock ROM?

[glofish]

Originally it was a soft brick. Which required me to just remove battery then start afresh.

Yeah, I have my stock ROM downloaded and i have seen this preloader file >> preloader_sinsoft92_cwet_kk.bin,
Originally my drivers were not installed correctly then multiple tries later i finally got the right ones installed (involved uninstalling with usbdeview and reinstalling) I followed this tutorial [Only registered and activated users can see links Click here to register] and everything worked like a charm until i got both of the SP Flash tool 2005 and 5054 errors on the step of flashing my modified CWM ROM.

All you need is your stock ROM. How did you brick your phone originally? Do you have your stock ROM?
[/quote]

[glofish]

It worked!!! Used the preloader file from the stock rom and i have installed the CWM rom with no worries!! Thanx for the idea!! You're a God-send

Gosh, i've been through a hell 12 hours thinking I bricked my 2 weeks old Cubot.

Having the exact same problem but I do have the set of screwdrivers necessary so popped open the back and disconnected the battery.
My only wonder is where to get right preloader drivers for the Cubot X9?
Thanx for the help

All you need is your stock ROM. How did you brick your phone originally? Do you have your stock ROM?

[cookiedough]

Okay No problem. I'm glad the suggestion worked out.