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+--- Thread: UnBrick Cat B15 (/Thread-UnBrick-Cat-B15)
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UnBrick Cat B15 - jawara - 2014-07-29
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.
RE: UnBrick Cat B15 - WuddaWaste - 2014-07-29
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.
RE: UnBrick Cat B15 - jawara - 2014-07-29
(2014-07-29, 05:40)WuddaWaste Wrote: 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.
RE: UnBrick Cat B15 - Irish - 2014-08-05
The B15 is very easy to unbrick!
search for the ROM (EMEA DS/SS<for ur phone) if u don't have a Backup and flash it with SP Flash Tool. The Scatter file u need is delivered with the Rom. U don't hav to be afraid, the scatter is the same and a how-to for SP Flash-Tool is easy to find.
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
RE: UnBrick Cat B15 - jawara - 2014-08-11
(2014-08-05, 12:47)Irish Wrote: The B15 is very easy to unbrick!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.
search for the ROM (EMEA DS/SS<for ur phone) if u don't have a Backup and flash it with SP Flash Tool. The Scatter file u need is delivered with the Rom. U don't hav to be afraid, the scatter is the same and a how-to for SP Flash-Tool is easy to find.
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
RE: UnBrick Cat B15 - aus9 - 2014-08-11
Irish
I see you have the same beast as per
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
RE: UnBrick Cat B15 - 1ikhan - 2014-08-14
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: ]
Hope this helps!
RE: UnBrick Cat B15 - jawara - 2014-08-14
RE: UnBrick Cat B15 - Irish - 2014-08-15
a swap is very slow even on High-class sd's. better try cache2sd and kill unnecessary tasks to speed up your B15...
RE: UnBrick Cat B15 - Irish - 2014-08-17
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