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HomeClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288
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2013/09/29
Offline
Hi,
I have some trouble with my wifi connection at this tablet. The home wireless notwork works (wpa2), but at the eurodam network (university) it is useless. I got an autentification error or it simply can not connect and abord connection.
Resetting the device, deleting /data/misc/dhcp and /data/misc/wifi, and serveral wifi fix apps could not help.
From time to time the device get a connection for some minutes, but I think it is only when not much is going on.
Other android devices have most of the time no problem to establish a connection.
Is there already a fix for this problem, other custom roms are not available.
I have no idea what I can do now, need any advice pls?
uni network:
encryption WPA2 + AES
authentication: 802.1x + PEAP/ MSCHAPv2
Android 4.1.x
Kernel: 3.0.8+ EM3066-101C@V03 #388 SMP PREEMPT Mon Mar 25 2013
http://www.xup.in/dl,10338083/IMG_20131107_204338.jpg/
Hardware information @ signature.
Regards,
peter334
Moderator
Firmware Guru
2012/11/19
Offline
Never had that problem. Sometimes it could be a problem with dhcp range to small to give a new IP.
You could try our CM10.1 with your stock kernel. Perhaps this could help.
Per aspera ad astra, we rock the Tablets !
If you like our firmwares, please consider making a donation to support our work.
Thank you!
Moderator
Firmware Guru
2012/11/19
Offline
I think this should work:
http://crewrktablets.arctablet.com/?p=1913
Your Kernel (must(!) be copied into rockdev\image folder):
http://crewrktablets.arctablet.com/?wpfb_dl=844
For security reasons, if something does not work please have the stock rom on your PC, if you do not have it already. If you don't have it, here it is from our stock archive:
http://crewrktablets.arctablet.com/?wpfb_dl=674
The following users say thank you to JochenKauz for this useful post:
peter334Per aspera ad astra, we rock the Tablets !
If you like our firmwares, please consider making a donation to support our work.
Thank you!
2013/09/29
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It did not work, the tablet comes no further forward than the boot logo, I waited 10 Minutes :/
All fixes where installed.
Anything else I can try?
The boot image is very small, compared with the original one?
I know the IP range problem, but it could not only be this. Other devices get an IP maybe after few tries, but with this tablet I can wait day for day and get no IP, in exceptional cases I get an IP for a few seconds/minutes but this is useless.
Moderator
Firmware Guru
2012/11/19
Offline
Yes, you are the first one to test it on Xeno 10.
Normally you can always get back in flash mode, except you brick your boot completely or the NAND is damaged.
Normally the kernel.img is saved in different images, like boot.img. But that is not needed if you flash the kernel seperate. This is the reason because our boot.img is smaller that the original one.
The CustomRom should boot, but I think you have apllied to many fixes.
Please flash again (EraseIDB first, then mark Loader and RUN) and only apply the format_NAND.zip first. All other fixes are for specific problems that could be there, but that is not a must.
As an example, some models have problems with the screen not rotating, or rotating in the wrong direction. For this problem, Oma had published several sensor fixes that could fix it. Sometimes battery information is not correct, the you could apply the battery info fix. And so on.
If you apply all fixes at once, you end up with a non bootable system.
So please try again. Only change kernel.img, in CWM install format_nand.zip and make a reboot. The first start could be 10-15 minutes in tota, cause the dalvik cache has to be filled.
The following users say thank you to JochenKauz for this useful post:
peter334Per aspera ad astra, we rock the Tablets !
If you like our firmwares, please consider making a donation to support our work.
Thank you!
Moderator
Firmware Guru
2012/11/19
Offline
Hope it works.
BTW here you can find another user who has same problem than you:
Per aspera ad astra, we rock the Tablets !
If you like our firmwares, please consider making a donation to support our work.
Thank you!
2013/09/29
Offline
Good to know that I'm not alone with that problem.
But the tablet is booting for over 25 Minutes ... if it is a android 4.1 problem as in the other thread assumed, it could be fixed with this version. *hope*
I can not see bootlog, it is possible to activate it? Maybe we can see where the tab stick ...
EDIT:
over 35 Minutes now, I think I can reset ... 
This is maybe the issue: https://code.google.com/p/android/issues/detail?id=36638
Any advice?
Moderator
Firmware Guru
2012/11/19
Offline
not good.
1. you can try to look at the boot thru adb.
2. Did you try the alternative method of Oma with the other recovery?
3. After applying the format_NAND.zip, do you get after that any messages like "cannot mount xxx"? It seems that it was not able to format the NAND correctly.
Per aspera ad astra, we rock the Tablets !
If you like our firmwares, please consider making a donation to support our work.
Thank you!
2013/09/29
Offline
JochenKauz said
3. After applying the format_NAND.zip, do you get after that any messages like "cannot mount xxx"? It seems that it was not able to format the NAND correctly.
Flashing stock recovery and then flash format_NAND_fix? no
But the nand fix flashed without errors.
Moderator
Firmware Guru
2012/11/19
Offline
unfortunately the format NAND raises no errors, even if it fails.
For me I'll always check the time that format_nand needs to complete the several steps.
It's a bad indication if formatting data and checking for errors only need 1-2 seconds to complete. It should need round about 4-6 seconds.
One other indication is, do not boot the tablet normally, instead enter the CWM again after you made format_NAND and reboot.
In CWM you can check the mounts. If this raises errors, the format was not successfulÂ
Per aspera ad astra, we rock the Tablets !
If you like our firmwares, please consider making a donation to support our work.
Thank you!
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