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Jiayu g3 problems

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#1
Geery101

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Hello,

So here's my problem: My phone can't read my sd card in recovery (message 'E:Can't mount /sdcard/'). I tried formatting the card (as well through the computer as through the phone. Didn't work.
I tried to flash CWM recovery 6.0.2.8 and TWRP out of mobile uncle tools, but I always end up in the first CWM recovery I installed via mobile uncle tools (v.5.5.0.4)
I can't flash any rom, and I can't use the update app.

A logical solution would be to use flashtool, but there I also have a problem I can't solve by searching it on google: When I attach the phone I get : BROM ERROR can't open com port. I tried reinstalling the drivers, tried different cables and different computers, so I guess my phone is somehow causing the problem.

Anyone has any idea?


#2
fpm_paolo

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uhm...did you try to install PdaNet drivers? Or, here's the link to my drive...try to download that and use.
Are you sure you followe the guides RIGHT???

http://tinyurl.com/g3-link


#3
Geery101

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I installed pdanet drivers. I followed putbinoot's guide in this forum


#4
Geery101

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I tried to install Lewa recovery from your drive, but now recovery isn't working at all. Phone goes off after Jiayu logo when trying to enter recovery manually. I just don't understand what's going on :D

Something else: sometimes my phone can't connect to the computer by usb, it just charges but I can't connect (This could be due to windows 8 though since dell isn't releasing drivers for my computer :( )


#5
illuminatus_

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View PostGeery101, on 04 March 2013 - 10:58 AM, said:



Something else: sometimes my phone can't connect to the computer by usb, it just charges but I can't connect (This could be due to windows 8 though since dell isn't releasing drivers for my computer :( )
On windows 8 like me you cannot install MediaTek DA USB VCOM driver because does not contain digital signature information and you should do this

How to install a driver that does not contain digital signature information in Windows 8?

Turn off the check

Hold the shift key while clicking on Restart

Select Troubleshoot > Advanced Options > Startup Settings > Restart


After Restart select option 7.

Here is a tutorial http://www.needrom.c...t657x-flashing/


#6
Geery101

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When my phone is turned off, and i plug in the usb cable, device manager shows mediatek preloader vcom drivers for 1-2 seconds, then it disappears and I hear the disconnect windows sound. I can't install the drivers because they only show up for 1-2 seconds.. So I will try again step for step on an other computer...

Edit: Exact same phenomenon on other computers. So it's my phone causing the problem...

Edited by Geery101, 12 March 2013 - 09:33 AM.


#7
putbinoot

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View PostGeery101, on 11 March 2013 - 01:01 PM, said:

When my phone is turned off, and i plug in the usb cable, device manager shows mediatek preloader vcom drivers for 1-2 seconds, then it disappears and I hear the disconnect windows sound. I can't install the drivers because they only show up for 1-2 seconds.. So I will try again step for step on an other computer...

Edit: Exact same phenomenon on other computers. So it's my phone causing the problem...
Just to check the battery is out of your phone while doing this, the phone has to be off and also the battery removed then the vcom will not disappear.

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#8
Geery101

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View Postputbinoot, on 12 March 2013 - 02:30 PM, said:

Just to check the battery is out of your phone while doing this, the phone has to be off and also the battery removed then the vcom will not disappear.

It was off, the battery was removed, tried this several times


#9
putbinoot

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View PostGeery101, on 13 March 2013 - 07:39 AM, said:

It was off, the battery was removed, tried this several times
Think this may have happened with me but i watched where the exclamation mark would appear and had the mouse sitting there ready and soon as it appeared right click and update driver. I think it took me a couple of attempts and even though the exclamation mark disappeared as I had clicked on the menu the process still continued when i clicked update driver. You may just have to be quick.

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#10
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another problem: Guys I dunno about u but my cpu locks in at 1001Mhz during screen off..anyone tested yet and noticed different? Android 4.0.4 20130223


#11
reganlives

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Guys, has anyone had any issues with their sd card? I'm having a nightmare since yesterday. Seems like the controller on my card has died! The phone randomly said "sd card removed unexpectedly" yesterday so I rebooted it then it said it had an error and it wanted to format it but I selected no. Tried removing the card and putting it back in but no help. The card isn't even picked up by the phone now and wont mount. I've got loads of data on it and need to recover it. Anyone have any ideas? I tried it in my pc using a micro sd card adapter but still no luck, the pc wont pick it up.


#12
T-Birds

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View Postreganlives, on 27 March 2013 - 02:11 PM, said:

Guys, has anyone had any issues with their sd card? I'm having a nightmare since yesterday. Seems like the controller on my card has died! The phone randomly said "sd card removed unexpectedly" yesterday so I rebooted it then it said it had an error and it wanted to format it but I selected no. Tried removing the card and putting it back in but no help. The card isn't even picked up by the phone now and wont mount. I've got loads of data on it and need to recover it. Anyone have any ideas? I tried it in my pc using a micro sd card adapter but still no luck, the pc wont pick it up.

Yes! It drove me mad as well. Problem seems to be with JB ROMS and some makes of SD card, I originally thought it was with just SanDisk Ultra microSDHC 32GB but it seems not.

It seems to be quite a common fault as you can see HERE  http://forum.xda-dev...ndomly UNMOUNTS and not unique to G3. I have got different one and no problems.

BTW, there were no problems using the original SD card and any ICS G3 rom.

Edit: Not sure if what I had above and your problem are the same? I also had another similar problem with and older SD card, where it had same kind of problems you described. I cant read or format it.

Edited by T-Birds, 28 March 2013 - 01:07 AM.


#13
reganlives

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T-Birds, did your card not even pick up in your pc? Were you able to recover any data? I'm running the stock ICS rom. Not carried out any real mods to my phone apart from the initial update and rooting and installation of CWM recovery as documented by putinboot a while back. Its a 32GB Trascend micro sd card that I've got and I only bought it in January and I've got about 15GB of data on there so as you can guess I'm quite upset at the moment as it seems like I've totally lost all my data now. I had a fair number of apps installed on my phone and had transferred a number of them across to the sd card but the most import thing is my photos as it was my 30th birthday on the 17th and me and my girlfriend were in Amsterdam for it and I had taken a number of pictures on the phone as well as using my normal camera. I cant understand why the card would just die like that as when it first prompted that it had been removed and I restarted the phone it prompted me to format it but now it wont even do that. I'm now a bit hesitant at using an sd card in the phone now! I did some research yesterday and from what I found out it may be the "controller" or "processor" of the card that has failed and the only way to recover data from a card like that is by getting a professional company to do it but I'm looking at an approx. £200 cost for this and even then they say micro sd cards and anything along the "monolith" design is difficult to recover data from!


#14
T-Birds

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No sorry everything was lost. PC did see it and suggested formatting, but no joy. Have you tried EaseUS Data Recovery Wizard? It didnt work for me but might be worth a try.


#15
reganlives

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Not tried it but will give it a shot.


#16
FrankieADZ

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I didn't want to make a new thread but today, I got on my G3 where all the writing either went all blurred or letters missing on certain launchers (apex & nova). Doesn't happen within apps.

Fingers crossed it's stopped now. What do people think happened & has it happened to anyone else?


#17
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..and sometimes keyboard went unresponsive, but a simple "back" and relaunch of keyboard and it works again..weird..both on stock 4.0.4 and Gthrill for G3N..





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