UnBrick Cat B15

[jawara]

Does anyone know where I can find the Scatter Text File for the Cat B15? I bricked mine today trying to swap the internal memory. I thought I made CWM backup but I didn't do it right. The good thing is that when I plug it into the computer the computer makes the sound.

[WuddaWaste]

Wow. I'd never heard of this phone until just now. It looks like a massively ruggedized phone. Great choice!

Have you already tried to contact the manufacturer? I would guess that because CAT is a brand which exists in the USA, their customer support not be too shabby. Their website shows a 646 number, which maps to New York. Might want to send an email or phone call to them.

[jawara]

Wow. I'd never heard of this phone until just now. It looks like a massively ruggedized phone. Great choice!

Have you already tried to contact the manufacturer? I would guess that because CAT is a brand which exists in the USA, their customer support not be too shabby. Their website shows a 646 number, which maps to New York. Might want to send an email or phone call to them.

I tried calling earlier from my HOUSE phone but it didn't work. I'll have to use my wives cell phone later. The problem with the B15 is that it has a low internal memory (I wish I knew that before I bought it). I sent them an email this morning but I haven't gotten a reply yet.

[Irish]

The B15 is very easy to unbrick!

search for the ROM (EMEA DS/SS I would do it this way:
no format and flash all files expect the nvram.bin. Boot into recovery and make a factory reset and reboot. (B15 should work)
Then Root the device via MtkDroidTools and make a Backup with MtkDroidTools too.
Then go back to SP Flash, perform a full format and use ur backup for reflash.
believe me, u won't edit the nvram/imei manually.

If you cannot get into Flash/Preloader-mode, don't worrie. Connect it with USB and leave it alone for about 10 minutes. In this time preloader should start on it's own...

greetz, have fun

[jawara]

The B15 is very easy to unbrick!

search for the ROM (EMEA DS/SS I would do it this way:
no format and flash all files expect the nvram.bin. Boot into recovery and make a factory reset and reboot. (B15 should work)
Then Root the device via MtkDroidTools and make a Backup with MtkDroidTools too.
Then go back to SP Flash, perform a full format and use ur backup for reflash.
believe me, u won't edit the nvram/imei manually.

If you cannot get into Flash/Preloader-mode, don't worrie. Connect it with USB and leave it alone for about 10 minutes. In this time preloader should start on it's own...

greetz, have fun

I already mailed it back. Hopefully it won't cost too much to fix. However what I would like to know it how to use my external SD Card (class 10, 32GB) as the system memory because the phones memory is only 512KB.

[aus9]

Irish

I see you have the same beast as per
[Only registered and activated users can see links Click here to register]

Did you end up using that adapter?

FWIW I am buying an micro-usb adapter that shorts pins 1 and 4 to put "some" devices into fastboot mode with no battery attached. But its at least 2 weeks ETA

[1ikhan]

Jawara, I recall you wrote a post about swaps and using the SD card as ram a day or two ago. I am certain the phone you are using (the kernel, to be specific) doesn't support SD card swaps. Once you get your phone back, I recommend don't try to swap again. Also. in any case, use MTK Droid Tools to back up your phone.

MTK Droid Tools: [snip]

Instructions: [snip]

[Edit: both Droid Tools download link and backup instructions can be found here: [Only registered and activated users can see links Click here to register]]

Hope this helps!

[jawara]

Yeah that was me. The Cat B15 has a really low "system memory" so I was thinking I'd make a Linux Swap file on an external sd card. If and when i get that phone back I'd like to get those apps off there to free up some memory and get some speed.

[Irish]

a swap is very slow even on High-class sd's. better try cache2sd and kill unnecessary tasks to speed up your B15...

[Irish]

haven't read carefully, sry. to use your external sd as internal you have to edit the vold.fstab and vold.fstab.nand found in system/etc.

vold.fstab:
dev_mount sdcard /storage/sdcard1 emmc@fat /devices/platform/goldfish_mmc.0 /devices/platform/mtk-sd.0/mmc_host
dev_mount sdcard2 /storage/sdcard0 auto /devices/platform/goldfish_mmc.1 /devices/platform/mtk-sd.1/mmc_host

vold.fstab.nand
dev_mount sdcard /storage/sdcard1 auto /devices/platform/goldfish_mmc.0 /devices/platform/mtk-sd.1/mmc_host

this works great on my B15