Help with CK MID9742 ROM

Discussion in 'Coby Generation 3 Development' started by verrwirung, Nov 8, 2012.

  1. verrwirung

    verrwirung Member

    Joined:
    Nov 4, 2012
    Messages:
    12
    Likes Received:
    1
    Trophy Points:
    62
    Tablet / Device:
    Coby Kyros MID9742-8
    Starting a new thread coz i haven't seen a topic here which deals with the USB bluetooth for CK MID9742...
    I've managed to make the USB BT dongle (generic CSR type) work on my CK MID9742 without any connection issues using vampirefo's Mobiz V2 9742 ROM and some driver tweaks....
    my problem is, the touch screen and screen rotate don't work...tried patching it with 9742 boot.img, then it will work, but wiping the BT drivers and stopping the USb BT to work...
    tried tweaking the drivers again, BT will work, but WiFi and screen won't work...
    I'm not actually an experienced android developer and would like to seek some assistance from whoever could help me resolve this issue...
    I'll look for some solution again, and if I do, I'll upload an updated Mobiz V2 9742 ROM with USB BT support (which of course, needs vampirefo's approval first as it was his original upload) for all the 9742 users who
    wants to use their USB BT Dongle...
    THANKS!
     
    • Like Like x 2
  2. vampirefo.

    vampirefo. Senior Member Developer

    Joined:
    Nov 8, 2011
    Messages:
    3,828
    Likes Received:
    1,389
    Trophy Points:
    655
    Location:
    Huntington WV
    Tablet / Device:
    Leagoo Lead 1 ZTE OPEN C, Coby 7065, Coby 8042, Coby 9740
    Sounds good, I will help out when I can, for right now upload your working boot.img.
     
  3. verrwirung

    verrwirung Member

    Joined:
    Nov 4, 2012
    Messages:
    12
    Likes Received:
    1
    Trophy Points:
    62
    Tablet / Device:
    Coby Kyros MID9742-8
    9742 WiFi/BTboot.img

    I just pulled it off from the dump of my CK MID9742 current configuration..
    as of this boot.img, wifi is working with bluetooth, screen rotation is fine, but videos playing upside down and the main issue, TOUCH not working...
    Tried unpacking this boot.img, but have no freakin idea where to find and how to tweak the files to make the touchscreen working..
    is there anyway to find out what modules/drivers the tablet is loading so i can change or rename .ko's to their respective drivers?

    hope you can help me with this... :)
    Thanks in Advance...
     
  4. vampirefo.

    vampirefo. Senior Member Developer

    Joined:
    Nov 8, 2011
    Messages:
    3,828
    Likes Received:
    1,389
    Trophy Points:
    655
    Location:
    Huntington WV
    Tablet / Device:
    Leagoo Lead 1 ZTE OPEN C, Coby 7065, Coby 8042, Coby 9740
    the boot.img you uploaded isn't for a 9742 it's a repacked Novo7_E3.
    So do you have a Coby 9742 or not
     
    • Like Like x 2
  5. verrwirung

    verrwirung Member

    Joined:
    Nov 4, 2012
    Messages:
    12
    Likes Received:
    1
    Trophy Points:
    62
    Tablet / Device:
    Coby Kyros MID9742-8
    Novo?!?
    omg...i have CK Mid9742,installed ur Mobiz V2 then the 9742 boot.img...
    then added some btusb ko's....then pulled dump...hmm, how is it possible to show novo?
    i'll be posting some pics later or tom for the tablet settings...

    EDIT: here's my "About Tablet" seciton

    $IMG_0131.JPG $IMG_0132.JPG
     
    Last edited: Nov 9, 2012
  6. vampirefo.

    vampirefo. Senior Member Developer

    Joined:
    Nov 8, 2011
    Messages:
    3,828
    Likes Received:
    1,389
    Trophy Points:
    655
    Location:
    Huntington WV
    Tablet / Device:
    Leagoo Lead 1 ZTE OPEN C, Coby 7065, Coby 8042, Coby 9740
    I have combine your Novo7_E3 and my 9742 boot.img so your touch screen should work and you should still have bt.

    9742_bt_boot.zip
     
    • Like Like x 2
  7. vampirefo.

    vampirefo. Senior Member Developer

    Joined:
    Nov 8, 2011
    Messages:
    3,828
    Likes Received:
    1,389
    Trophy Points:
    655
    Location:
    Huntington WV
    Tablet / Device:
    Leagoo Lead 1 ZTE OPEN C, Coby 7065, Coby 8042, Coby 9740
    your boot.img clearly identifies itself.

    exec /system/bin/logwrapper /system/bin/e2fsck -y /dev/block/nandh
    exec /system/bin/busybox mount -t ext4 -o noatime,nosuid,nodev,barrier=0,journal_checksum,noauto_da_alloc /dev/block/nandh /cache

    format_userdata /dev/block/nandi Novo7_E3

    use a file manger and open init.sun4i.rc, your boot.img didn't come from me, it's costumed locked which I knew how to unlock it, plus it also runs custom modules. So where did you get the boot.img?
     
    Last edited: Nov 9, 2012
  8. verrwirung

    verrwirung Member

    Joined:
    Nov 4, 2012
    Messages:
    12
    Likes Received:
    1
    Trophy Points:
    62
    Tablet / Device:
    Coby Kyros MID9742-8
    OMG!! sorry about that...
    I remembered now, I tried some custom ROM i found while looking for USB BT dongle on Allwinner A10 tablets and installed a ROM named "Codename Mobiz V2"...
    then I didn't liked it and installed your Mobiz V2, probably forgot to wipe out data/cache and that also explains why my tablet's screen acts weird when i press sleep/power button..
    Thanks for the modified ROM, will try it and give update....
     
  9. cuellardremix

    cuellardremix Junior Member

    Joined:
    May 9, 2015
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    2
    Hello, i'm sorry for reviving a two years old thread, but i recently bought a coby mid9742, it was working fine until i tried to "root" it, everything works fine, the camera, even playstore is there, but i can't activate wifi, i switch it to "On" and after a time it switches back to off...
    i already tried with other roms, here i have the list:
    9742_Mobiz_V.2
    MID9742-memup-su-120914
    cfw_coby_9742_4.0.3_0.1
    9742_bt_boot

    and the problem still persists.
    i don't know what else to do...
    i hope you could help me...
    thanks in advance
    and sorry again...

    Link removed. LiveSuite ROM links not permitted.
     
    Last edited by a moderator: May 10, 2015
  10. Traveller

    Traveller Super Moderator Staff Member

    Joined:
    Jun 16, 2012
    Messages:
    2,275
    Likes Received:
    877
    Trophy Points:
    460
    Tablet / Device:
    Coby Kyros MID9742, Dell Streak 5, Samsung Galaxy S4, Nexus 6
    You used a LiveSuite ROM, and didn't make a backup of the stock firmware beforehand. The reason your WiFi doesn't work is because the drivers in the ROMs are not the correct ones for your tablet. This is because Coby routinely changed the hardware based upon supplies available.

    The ROM dumps in development may be of assistance. In the Mobiz ROM thread vampirefo explains how to fix the inverted YouTube issue the ROM had by using files from the stock ROM. Do the same thing, only in your case using the ROM dumps to get the files. Then flash the updated Mobiz ROM zip. If WiFi works, then you're set. Otherwise you're screwed for lack of a backup.
     
    • Like Like x 1
  11. kevinthefixer

    kevinthefixer Member Developer

    Joined:
    Feb 10, 2014
    Messages:
    94
    Likes Received:
    24
    Trophy Points:
    90
    Location:
    Arizona
    Tablet / Device:
    Coby Kyros MID-9742-8
    Another point. These Cobys in general, and the 9742s specifically, used very cheap wi-fi chips. (They used very cheap chips for everything else also, but that's a different story.) Even if you have the correct drivers in whatever ROM you're using, it may take several boots to get the wi-fi to work. Out of 5 9742s that I maintain, two of them usually need to be rebooted a couple of times before they will connect. It seems to be temperature-related, they work better on warm days. Fooling with Livesuit may well have put the last nail in its coffin. I would go with @Traveller1701's suggestion, but don't give up if it doesn't work the first boot.
     

Share This Page

Search tags for this page

mid9742 bluetooth adapter

,

bluetooth on coby md9742

,

coby mid9742 driver bluetooth

,

crane mid9742 tablet rom

,

how do i find my bluetooth in coby kyros mid9742

,

how to connect usb to coby mid9742-8

,

how to get bluetooth on coby kyros mid9742

,

mid 9742 fix wifi modul

,

mid9742 bluetooth

,

mid9742 firmware wifi

,

rom rockchip mobiz v 2