Develop Bugs

Hard bricked xperia play ;( [Fixed Thanks to Alejandrissimo]

I went to flash a kernel via fast boot it was going all good till i tried to boot it up since then ive tried 3 computers they dosent recognise it the charger won't charge it wont go into fastboot and the only thing it dies is vibrate and show blank screen it dosent show any light from the power switch not even a red one any fixes i no about Alejandrissimo but idk if he can fix this one I think my play is dead does anyone have anything I could do and if I took it the pace I got it from what would they say would they repair it or what or maybe replace it on the spot the bootloader was unlocked BTW running ics

what happens if you hold search when plugging in the usb cable?

chevyowner said:
what happens if you hold search when plugging in the usb cable?[/QUOTE
Nothing I wish it did then i could fix the fu***** thing
Click to expand...
Click to collapse

try taking the battery out and replace the hold search and plug in usb cable but never touch the power button

tried that
if i too
k it to the local store i got it from would they give me a new one???

Use flashtool to restore to default firmware. Then re try

IMO it is not bricked, BUT you need to reflash the kernel or flash a different kernel. not sure if this applies to the R800 but do you have a charge only cable?

chevyowner said:
IMO it is not bricked, BUT you need to reflash the kernel or flash a different kernel. not sure if this applies to the R800 but do you have a charge only cable?
Click to expand...
Click to collapse
Computer dosnt recognise it and it dosent enter fastboot and already tried flashtool

extremetempz said:
Computer dosnt recognise it and it dosent enter fastboot and already tried flashtool
Click to expand...
Click to collapse
Did you download the proper ftf file for your phone and place it in the "firmware" folder?

This happened to me. Get flash tool and do not connect t until it prompts you. So select the file you wanna flash and such and at the end then connect your phone itll work. Just take your battery out each time you fail to make sure your phone is off. Believe me I was worried to but for some reason that trick worked.
Sent from my Play using xda app-developers app
---------- Post added at 03:12 AM ---------- Previous post was at 03:08 AM ----------
Oh I forgot... hold the back button to make it enter flash boot (different that fastboot when you are holding search) flash the stock firmware so you can start over.
Sent from my Play using xda app-developers app

I know you mentioned Alejandrissimo, so I just want to ask, how long did it take for him to get your Google Talk invite? I contacted him by the website and it told me that it cost 24 USD and to add him on Google Talk, I sent him $24 through paypal, the transaction completed according to the site so I'm sure he got it, but I've been waiting on Google Talk for about 3 hours now. I'm sure he's probably busy right now though. Just curious.

Okay, but the computer doesn't recognize the PHONE!
When I connect the phone to the computer, the LED flashes red and the computer says there is something plugged, but not identified, preventing the flash boot.

Now i can connect the phone to the PC, but only lights up the green LED (charging, i guess), even if i hold the "back" or the "search" button while plugging the USB.
This LED is the only proof of, at least, it is receiving energy.

Konae said:
Now i can connect the phone to the PC, but only lights up the green LED (charging, i guess), even if i hold the "back" button while plugging the USB.
This LED is the only proof of, at least, it is receiving energy.
Click to expand...
Click to collapse
I still can't figure out what's happening. Please someone help me!

Konae said:
I still can't figure out what's happening. Please someone help me!
Click to expand...
Click to collapse
plug in phone holding search button if pc recognize it and if you have adb drivers installed flash any kernel you want

creative_md said:
plug in phone holding search button if pc recognize it and if you have adb drivers installed flash any kernel you want
Click to expand...
Click to collapse
>>
Konae said:
Now i can connect the phone to the PC, but only lights up the green LED (charging, i guess), even if i hold the "back" or the "search" button while plugging the USB.
This LED is the only proof of, at least, it is receiving energy.
Click to expand...
Click to collapse

THANK YOU!
MGSBigBoss said:
This happened to me. Get flash tool and do not connect t until it prompts you. So select the file you wanna flash and such and at the end then connect your phone itll work. Just take your battery out each time you fail to make sure your phone is off. Believe me I was worried to but for some reason that trick worked.
Sent from my Play using xda app-developers app
---------- Post added at 03:12 AM ---------- Previous post was at 03:08 AM ----------
Oh I forgot... hold the back button to make it enter flash boot (different that fastboot when you are holding search) flash the stock firmware so you can start over.
Sent from my Play using xda app-developers app
Click to expand...
Click to collapse
FINALLY. Your advice worked. I did the same thing the OP did, flashed a kernal from cm9. I couldn't even get the charger to recognize or do anything. After taking battery out and starting flashtool process first, It took 4 times with flashtool. Thanks again.

Beanerman said:
FINALLY. Your advice worked. I did the same thing the OP did, flashed a kernal from cm9. I couldn't even get the charger to recognize or do anything. After taking battery out and starting flashtool process first, It took 4 times with flashtool. Thanks again.
Click to expand...
Click to collapse
It is not working for me. Could you guys give some more details of how you did it? I have tried already like 15 times and no luck. Also, is it happening to you guys that the phone will ONLY go into flashmode? I can flash anything into it but it will not boot, it will just stay in flashmode.
What I am doing is basically have the phone without battery and then start flashtool until it asks me to connect the phone. At that point I place the battery and connect the phone to the usb without pressing the BACK key, as it is not needed in my phone. Once the flashing is done, the phone goes into flashmode again.
Did this happen to you too?

Cesarramson,
Yep, sounds familiar. Is your phone unlocked? Is it r800x or another?
Sent from my DROIDX using xda premium

I got this problem too when i'm flashing doomkernel. Will try this when i got home. i hope it will fix my problem.

[Q] xperia arc trouble with fastboot/flashtool

Hi, I have little problem with my xepria arc (unlocked booloader). a flash kernel by doomlord (doomkernel v20) - it's workig good, but I install incorrect zip from SDcard. Now I can run only recovery. Flashtool and fastboot aren't working, and I can flash new ROM, but without flastool i can't. Someone who help me pls? Thanks

I don't think that it's possible to break flashmode and fastboot mode with a single zip file. Pull out your battery for 10 seconds then put it back in and connect your phone (without turning it on) to a PC while holding "back" button. Green LED should illuminate. If it doesn't then repeat but this time hold "menu" button, blue LED should light up. If it doesn't work for you then I don't know how to help. Maybe you should reinstall drivers on your PC or try with different USB port or even another PC.

So, I try all my USB ports, two PC, PC suite and update service, flashtool,etc...but when I hold BACK button and connet USB cable , BLUE led only flash and on screen display DoomKernel logo and nothing else. I try repair my ARC for one week, but I'm hopeless :crying:

BLUE led only flash and on screen display DoomKernel logo
Click to expand...
Click to collapse
YOUR PHONE MUST BE TURNED OFF
Seriously turn it off and connect while holding back or menu if green or blue led flashes then its working.

-_- YES PHONE IS TURN OFF while I hold back or menu key and connect USB cable.....

And it's turning on by itself? Really weird...
---------- Post added at 11:07 PM ---------- Previous post was at 11:03 PM ----------
Only thing that comes to my mind is flashing a ROM that's compatible with your kernel and then trying again.

so problem is,that i need flash new ROM/kernel, but flashtool and fastboot aren't working. When I turn off my device, hold a back/menu key and connect USB cable, don't turn on flashtool/fastboot mode....only display on screen kernel logo and then device reboot and hent repeat reboot .... I try install this http://forum.xda-developers.com/showthread.php?t=1994130 but it doesn'n work....I search on google and here too but nothing didn't work .... YES, I need flashing rom compatible with my kernel (I have it) but I don't get to to flastool/fastboot.... srry for my bad english

You said you flashed a wrong zip file.And the thread that you mentioned above is for xperia pro.Am I correct?
And you are using an Arc!
Bomber!
Try uninstalling the flashtool.Redownload another version of flashtool.
Run the drivers.Switch off your device.Press back button and see if this newer version picks up your phone.
Sent from my Xperia Arc using xda app-developers app

YES, I need flashing rom compatible with my kernel (I have it) but I don't get to to flastool/fastboot.... srry for my bad english
Click to expand...
Click to collapse
But you don't need a flashtool or anything to flash a ROM because you have a working kernel with a recovery. Download a flashable zip file put it on your sd wipe all from the recovery and install your ROM.

yes,but i don't find flashable zip, who work on my kernel.....and this http://forum.xda-developers.com/showthread.php?t=1994130 is for arc too(during instalation i can choose from ARC,ARC S, PRO,NEO,RAY etc...)...
Do you know where I dowload flashable zip for my kernel?
Thx.

Its a GB kernel right? If so then you can try any GB stock based ROM. For example this one http://forum.xda-developers.com/showthread.php?t=2083286

No no...it´s older kernel than GB ....

No it's not. If you are using Doomkernel then its 100% Ginger Bread based. There is nothing older than GB on Arc because this phone was released with this version of android back in 2011. Install ROM from my previous post and have fun with your device.
---------- Post added at 07:18 PM ---------- Previous post was at 07:09 PM ----------
I'm not trying to be rude but please go educate yourself before doing anything with your phone. There are guides and stickies for people new to Android.

I LOVE U....it´s working ...thanks so much ...

Step by Step Flashing a Custom Rom, from Stock /w auto rooting
http://forum.xda-developers.com/showpost.php?p=38538332&postcount=710
thanks to vasta for the complete and chronological guide.

hey guys i have nearly the same problem. Installed all drivers. I can enter fastboot mode, but not flash mode?!
It's really weird, but it doesn't work! EVerytime it goes to the battery symbol and charge my phone..
Pleae help me!
rom: jj, kernel: arc knight
system win7 64 bit
i need to go to official firmware to install a custom firmware, cause of the bootloop problem..

[Q] need help soft brick xperia ion

guys please help me.. i think i have bricked my xperia ion.. well this is what i did..
first i installed the rooted jellybean rom from sir spectre's rooted/deodexed stock rom. then after that. i succefully installed the rom but when i reboot the system it starts the bootloop. then i follow his instruction of holding the power + volume up button to have the turned of state. but this what happened instead of getting a 3 simutanous vibration i have got 1 single vibrate and then the 3 simultanous vibrate came then my phone died. now what did happen to my phone? can i revived it i connected it to the pc as the guide said that the flash tool would recognize it but nothing really happens it has been 2 hours now since i connected it to the pc and i still did not remove it..
what happened? please tell me and help me please,..,

Before you connect the phone to the pc hold/press volume down button to flash again the ROM.

AlinTheron said:
Before you connect the phone to the pc hold/press volume down button to flash again the ROM.
Click to expand...
Click to collapse
yes sir i did that but no green noticfication light and not even a charging state.. what did happen? i followed the steps but it seems it made me lost.

Can you flash a kernel for booting,or your pc does not see the phone at all?.

AlinTheron said:
Can you flash a kernel for booting,or your pc does not see the phone at all?.
Click to expand...
Click to collapse
my pc wont recognize the phone.. i think i need to charge it for far longer time to have it the first cycle as the guide for recovering a bricked xperia device.. thanks for your reply sir..

2 hours is enough. At some point it will try to boot. Then put it in flashmode and flash with Flashtool the ROM. Do not try to power it on. Wait,it will try to boot by himself.
Don't charge him from pc. Use wall socket.
---------- Post added at 10:30 PM ---------- Previous post was at 10:24 PM ----------
Or read this. Read it all.
http://forum.xda-developers.com/showthread.php?t=2344896

gave012 said:
guys please help me.. i think i have bricked my xperia ion.. well this is what i did..
first i installed the rooted jellybean rom from sir spectre's rooted/deodexed stock rom. then after that. i succefully installed the rom but when i reboot the system it starts the bootloop. then i follow his instruction of holding the power + volume up button to have the turned of state. but this what happened instead of getting a 3 simutanous vibration i have got 1 single vibrate and then the 3 simultanous vibrate came then my phone died. now what did happen to my phone? can i revived it i connected it to the pc as the guide said that the flash tool would recognize it but nothing really happens it has been 2 hours now since i connected it to the pc and i still did not remove it..
what happened? please tell me and help me please,..,
Click to expand...
Click to collapse
Yeah it happen with me also..please go to this link below for solution
http://forum.xda-developers.com/showthread.php?p=43281822
Sent from my LT28h using xda premium

[q] lg optimus g f180s stuck in starting logo: Please help me

HELLO BROTHERS AND FRIEND,
I AM USING LG OPTIMUS G F180S. AFTER UPDATING THE KITKAT VERSION, I WAS TRYING TO DEGRADE IT TO JELLYBEAM FOR ROOTING. AFTER COMPLETION UPGRATION, THE PHONE WAS STUCK IN LOGO MOOD. PLEASE HELP ME TO SOLVE THIS. PLEASE PLEASE PLEASE PLEASE.
pLEASE HELP ME BROTHER'S.
REGARDS IN ADVANCE AND ALWAYS.
CLICKANU

while updating again in download mode, it shows phone not found
clickanu said:
hello brothers and friend,
i am using lg optimus g f180s. After updating the kitkat version, i was trying to degrade it to jellybeam for rooting. After completion upgration, the phone was stuck in logo mood. Please help me to solve this. Please please please please.
Please help me brother's.
Regards in advance and always.
Clickanu
Click to expand...
Click to collapse
please help me
please help me

Now it shows this error (attached) while updating the file again
clickanu said:
please help me
please help me
Click to expand...
Click to collapse
help me please!!!!!!!
Help me please!!!!!
Regards

http://forum.xda-developers.com/showthread.php?t=2010624&page=49
Have you tried this method? Can you connect your phone in download mode?

Please see these attached files
clickanu said:
help me please!!!!!!!
Help me please!!!!!
Regards
Click to expand...
Click to collapse
while try to upgrading kitkat, it shows "extract file error" and after restart "the logo appears only"...see the video.
Please help me !!! Please someone help me dear (
regards..

Thanks for reply
ahmed xperia p said:
http://forum.xda-developers.com/showthread.php?t=2010624&page=49
have you tried this method? Can you connect your phone in download mode?
Click to expand...
Click to collapse
yes, i can connect the phone in download mode...
Regards,

clickanu said:
yes, i can connect the phone in download mode...
Regards,
Click to expand...
Click to collapse
Ok relax if you can connect in download mode 90% chances are your phone will be recovered.
---------- Post added at 11:46 PM ---------- Previous post was at 11:36 PM ----------
clickanu said:
yes, i can connect the phone in download mode...
Regards,
Click to expand...
Click to collapse
What kdz are you trying to flash? Broken kdz file also results in extract error, try downloading some other kdz specific to your phone model.

Please help me out
Ahmed Xperia p said:
Ok relax if you can connect in download mode 90% chances are your phone will be recovered.
Click to expand...
Click to collapse
Dear Brother,
the link you provided, i couldnt understand. I am almost new user and new in LG. Please help me out, If you tell me the steps, how to solve...then i will be very much grateful to you Brother.
Regards,

clickanu said:
Dear Brother,
the link you provided, i couldnt understand. I am almost new user and new in LG. Please help me out, If you tell me the steps, how to solve...then i will be very much grateful to you Brother.
Regards,
Click to expand...
Click to collapse
Just check first post of the given link . It's easy .
---------- Post added at 11:57 PM ---------- Previous post was at 11:52 PM ----------
what i understand is you successfully flashed jelly bean kdz but after that you are stuck in bootloop? If that is the case all you need is to wipe your phone and itll boot

how do i wipe the phone, cause there is no recovery mode found in my phone
Ahmed Xperia p said:
Just check first post of the given link . It's easy .
---------- Post added at 11:57 PM ---------- Previous post was at 11:52 PM ----------
what i understand is you successfully flashed jelly bean kdz but after that you are stuck in bootloop? If that is the case all you need is to wipe your phone and itll boot
Click to expand...
Click to collapse
I dont find any recovery mode in my phone to wipe and reboot...
and why it is not updated to kitkat through kdz, it is shown file extract error....Please help.
Sorry for bothering you.
regards and thanks.

Pleas switch off your phone. Press volume -- volume down key and press power button together. On screen display you will get option for hard reset your phone, click power button twice, then your phone will boot after 5 to 10 seconds after a hard reset..

clickanu said:
I dont find any recovery mode in my phone to wipe and reboot...
and why it is not updated to kitkat through kdz, it is shown file extract error....Please help.
Sorry for bothering you.
regards and thanks.
Click to expand...
Click to collapse
8) If the phone is stuck at the booting up LG/Telco logo, you will need to manually wipe the data partition.
9) Force the phone off by holding the power button for appx 15secs.
10) Put the phone into recovery mode by holding the volume up and home button concurrently, then press the power button. Let go of all the buttons after you see the LG logo on screen for the 2nd time and the screen goes blank thereafter (backlight may still be on). The phone will kind of reboot and then enters recovery mode. Repeat the process if you did not get it the first time.
11) With the phone in Recovery Mode, connect it to the computer, wait for the drivers to load (if doing it for the first time), unzip the wipe batch file downloaded earlier from step (4), double click on wipe.bat to execute the wipe command.
12) Your phone will auto reboot when wiped and (hopefully) boot as per normal.
Follow this procedure and download wipe batch file from here http://www.mediafire.com/?ru7erfxsz7p7s3p
All credit goes to @potatohead for his useful thread
---------- Post added at 12:22 AM ---------- Previous post was at 12:19 AM ----------
cooljay5 said:
Pleas switch off your phone. Press volume -- volume down key and press power button together. On screen display you will get option for hard reset your phone, click power button twice, then your phone will boot after 5 to 10 seconds after a hard reset..
Click to expand...
Click to collapse
This is the most easiest way to fix .
Ahmed Xperia p said:
8) If the phone is stuck at the booting up LG/Telco logo, you will need to manually wipe the data partition.
9) Force the phone off by holding the power button for appx 15secs.
10) Put the phone into recovery mode by holding the volume up and home button concurrently, then press the power button. Let go of all the buttons after you see the LG logo on screen for the 2nd time and the screen goes blank thereafter (backlight may still be on). The phone will kind of reboot and then enters recovery mode. Repeat the process if you did not get it the first time.
11) With the phone in Recovery Mode, connect it to the computer, wait for the drivers to load (if doing it for the first time), unzip the wipe batch file downloaded earlier from step (4), double click on wipe.bat to execute the wipe command.
12) Your phone will auto reboot when wiped and (hopefully) boot as per normal.
Follow this procedure and download wipe batch file from here http://www.mediafire.com/?ru7erfxsz7p7s3p
All credit goes to @potatohead for his useful thread
Click to expand...
Click to collapse
Extract file error could be because of a broken kdz or once a kdz larger than 1 gb is flashed using kdz updater it also gives this error

Thanks Seniors...Grateful....to You
Ahmed Xperia p said:
8) If the phone is stuck at the booting up LG/Telco logo, you will need to manually wipe the data partition.
9) Force the phone off by holding the power button for appx 15secs.
10) Put the phone into recovery mode by holding the volume up and home button concurrently, then press the power button. Let go of all the buttons after you see the LG logo on screen for the 2nd time and the screen goes blank thereafter (backlight may still be on). The phone will kind of reboot and then enters recovery mode. Repeat the process if you did not get it the first time.
11) With the phone in Recovery Mode, connect it to the computer, wait for the drivers to load (if doing it for the first time), unzip the wipe batch file downloaded earlier from step (4), double click on wipe.bat to execute the wipe command.
12) Your phone will auto reboot when wiped and (hopefully) boot as per normal.
Follow this procedure and download wipe batch file from here http://www.mediafire.com/?ru7erfxsz7p7s3p
All credit goes to @potatohead for his useful thread
---------- Post added at 12:22 AM ---------- Previous post was at 12:19 AM ----------
This is the most easiest way to fix .
Extract file error could be because of a broken kdz or once a kdz larger than 1 gb is flashed using kdz updater it also gives this error
Click to expand...
Click to collapse
Another thing, now my phone doesnt show any IMEI no, and please suggest me how do i get it and how do i update the kitkat version now...can i root the phone after updating the kitkat or now?
Please suggest...You are just Great
Regards and Thanks,

clickanu said:
Another thing, now my phone doesnt show any IMEI no, and please suggest me how do i get it and how do i update the kitkat version now...can i root the phone after updating the kitkat or now?
Please suggest...You are just Great
Regards and Thanks,
Click to expand...
Click to collapse
No IMEI means you need to restore EFS backup ,which i doubt you did not make

I didnt know anything about EFS backup....!!! Is there anything wrong with my phone.!
Ahmed Xperia p said:
No IMEI means you need to restore EFS backup ,which i doubt you did not make
Click to expand...
Click to collapse
I dont know anything about EFS??? Please let me know and help me out Brother, You are the boss. How do i get it back? How do i remove the korean system softwares. Please help me out....Regards

signal working fine and phone recognizes sim card ? Check if imei is shown without sim ? Currently you're on which firmware and what firmware you flashed earlir?
Sent from my LG-E975 using XDA Premium 4 mobile app

Thanks Senior for your patience to reply....
Ahmed Xperia p said:
signal working fine and phone recognizes sim card ? Check if imei is shown without sim ? Currently you're on which firmware and what firmware you flashed earlir?
Sent from my LG-E975 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yees, Signal working fine and phone recognizes the sim card.
IMEI not shown without sim Dear Brother. Currently I am on version 4.1.2, jellybean,
I flashed with jellybeam F180S20d_00.kdz.
Please suggest me and help me out
Thanks and regards,

clickanu said:
Yees, Signal working fine and phone recognizes the sim card.
IMEI not shown without sim Dear Brother. Currently I am on version 4.1.2, jellybean,
I flashed with jellybeam F180S20d_00.kdz.
Please suggest me and help me out
Thanks and regards,
Click to expand...
Click to collapse
Another interesting thing is that, in my phone it is shown F180S but when i connect it to computer via usb, the LG support tool software shows it LGV500.
What about the matter Brother???
Thanks and Regards

If you've lost your imei without making EFS backup , you've lost it forever. There's no fix for this i guess. Best bet for you is use your phone as it is.
Sent from my LG-E975 using XDA Premium 4 mobile app
---------- Post added at 02:06 AM ---------- Previous post was at 02:05 AM ----------
You can try flashing stock kdz for your modle, it may help you but nit guaranteed.
Sent from my LG-E975 using XDA Premium 4 mobile app

Can i root my phone now or after updating to kitkat?

PX6 android 9,0 (no physical buttons) black screen, wont boot

Hi, i have bought this player: Rockship PX6 ( rk3399)
2 Core cortex A72 2ghz
4 Core Cortex A53 1.5ghz
At first, it worked just fine. After only few hours of use, when I turn ignition off, android goes to sleep. When I turn ACC back on, touch would not respond. I had to press RST button, to get touch working again.
After five or six reboots like that, android doesn't want to turn on at all. Buttons light up for a sec when I press RST button, but nothing happens, black screen. How can I fix this? The seller sent me the firmware uptade.zip, and MCU (MTCE_CZ_V3,10) img file. What can I do to fix it? So far I tried making a bootable SD card with SD firmware tool, (i tried putting mcu img to sd card and firmware img from this forum) put the SD cart into slot, and powered on the radio. But the screen still stays black, and buttons only flash once when I press RST. Thanks!

Hi!
Please see video: https://youtu.be/i9wEgid8WYY
Mee too PX5.
Only android 9.0! 8.0 no bugged.
Minde325 said:
Hi, i have bought this player: Rockship PX6 ( rk3399)
2 Core cortex A72 2ghz
4 Core Cortex A53 1.5ghz
At first, it worked just fine. After only few hours of use, when I turn ignition off, android goes to sleep. When I turn ACC back on, touch would not respond. I had to press RST button, to get touch working again.
After five or six reboots like that, android doesn't want to turn on at all. Buttons light up for a sec when I press RST button, but nothing happens, black screen. How can I fix this? The seller sent me the firmware uptade.zip, and MCU (MTCE_CZ_V3,10) img file. What can I do to fix it? So far I tried making a bootable SD card with SD firmware tool, (i tried putting mcu img to sd card and firmware img from this forum) put the SD cart into slot, and powered on the radio. But the screen still stays black, and buttons only flash once when I press RST. Thanks!
Click to expand...
Click to collapse

Doky1988 said:
Hi!
Please see video: https://youtu.be/i9wEgid8WYY
Mee too PX5.
Only android 9.0! 8.0 no bugged.
Click to expand...
Click to collapse
Minde325 said:
Hi, i have bought this player: Rockship PX6 ( rk3399)
2 Core cortex A72 2ghz
4 Core Cortex A53 1.5ghz
At first, it worked just fine. After only few hours of use, when I turn ignition off, android goes to sleep. When I turn ACC back on, touch would not respond. I had to press RST button, to get touch working again.
After five or six reboots like that, android doesn't want to turn on at all. Buttons light up for a sec when I press RST button, but nothing happens, black screen. How can I fix this? The seller sent me the firmware uptade.zip, and MCU (MTCE_CZ_V3,10) img file. What can I do to fix it? So far I tried making a bootable SD card with SD firmware tool, (i tried putting mcu img to sd card and firmware img from this forum) put the SD cart into slot, and powered on the radio. But the screen still stays black, and buttons only flash once when I press RST. Thanks!
Click to expand...
Click to collapse
Same here.... Did you guys solve the problem?

Doky1988 said:
Hi!
Please see video: https://youtu.be/i9wEgid8WYY
Click to expand...
Click to collapse
Video not available...

count me in with this same issue on the PX6. My system was working okay, although i was getting a static sound from my speakers. Seller provided update file "HA2_rk3399_9.0_ota(20150529)" which i updated and now my system is in a blank screen and boot loop when i try to reset.
The reset video i found has a pin RST button, but on the opposite side of the head unit. I'm hoping there is a software fix for this.. cuz i just got this unit less than a week ago i think.

dishguy05 said:
count me in with this same issue on the PX6. My system was working okay, although i was getting a static sound from my speakers. Seller provided update file "HA2_rk3399_9.0_ota(20150529)" which i updated and now my system is in a blank screen and boot loop when i try to reset.
The reset video i found has a pin RST button, but on the opposite side of the head unit. I'm hoping there is a software fix for this.. cuz i just got this unit less than a week ago i think.
Click to expand...
Click to collapse
okay i'm not sure if it was a dim display or the sun reflecting on the screen, but seems like things were happening on the screen but not clear enough for me to see during the day. At night, i was able to reset it and update the system. now my system is back online but during reset it uninstalled most of the preloaded apps...

dishguy05 said:
count me in with this same issue on the PX6. My system was working okay, although i was getting a static sound from my speakers. Seller provided update file "HA2_rk3399_9.0_ota(20150529)" which i updated and now my system is in a blank screen and boot loop when i try to reset.
The reset video i found has a pin RST button, but on the opposite side of the head unit. I'm hoping there is a software fix for this.. cuz i just got this unit less than a week ago i think.
Click to expand...
Click to collapse
Hey, this also happened to me after the 20150529, which I guess was broken. How did you manage to access the recovery, if you did?
Thanks a lot

danieleds said:
Hey, this also happened to me after the 20150529, which I guess was broken. How did you manage to access the recovery, if you did?
Thanks a lot
Click to expand...
Click to collapse
I wasn't able to get to recovery but it did erase everything and booted up. As I mentioned I tried it on the evening when I could see the display better. You can see YouTube video ID: b7kEy4XzQX0 for the method I used

danieleds said:
Hey, this also happened to me after the 20150529, which I guess was broken. How did you manage to access the recovery, if you did?
Thanks a lot
Click to expand...
Click to collapse
Try to press reset pin hole until you see blinking the lights (15-20sec) release and press again for 3-5sec until you see the android pie logo
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ikerg said:
Try to press reset pin hole until you see blinking the lights (15-20sec) release and press again for 3-5sec until you see the android pie logo
Enviado desde mi SM-G950F mediante Tapatalk
Click to expand...
Click to collapse
When I do that, this screen pops up and nothing moves

danieleds said:
When I do that, this screen pops up and nothing moves
Click to expand...
Click to collapse
Any news ? Do you fixed your problem ?

boulete said:
Any news ? Do you fixed your problem ?
Click to expand...
Click to collapse
No, I tried everything but in the end I had to return my unit.

Try to get into the recovery mode at first
Please try to long press the res button until the button lights blink 3 times and then release the res button, and then short click the res button one more time quickly. Now wait for the unit to get into the recovery mode.
Then you can update the MCU and system firmware, or just factory data reset in the recovery mode.

Any other solution??
---------- Post added at 07:50 PM ---------- Previous post was at 07:49 PM ----------
To make a usb bootable perhaps?

xxgeorgegr said:
Any other solution??
---------- Post added at 07:50 PM ---------- Previous post was at 07:49 PM ----------
To make a usb bootable perhaps?
Click to expand...
Click to collapse
USB port is not prepared for USB bootable...but sdcard yes...try it
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ikerg said:
USB port is not prepared for USB bootable...but sdcard yes...try it
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Click to expand...
Click to collapse
There is no sd card input
Only 2 usb

xxgeorgegr said:
There is no sd card input
Only 2 usb
Click to expand...
Click to collapse
If dasaita...then yes it has a hidden sdcard port.
You have to find it when disassembled from.car
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---------- Post added at 10:32 PM ---------- Previous post was at 10:31 PM ----------
ikerg said:
If dasaita...then yes it has a hidden sdcard port.
You have to find it when disassembled from.car
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Click to expand...
Click to collapse
If you open any explorer app or music app do not appear the two USB ports and a GPS named drive?
If so...there is a hidden sdcard port
If not perhaps exists but no sdcard inserted
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ikerg said:
If dasaita...then yes it has a hidden sdcard port.
You have to find it when disassembled from.car
Enviado desde mi SM-G950F mediante Tapatalk
---------- Post added at 10:32 PM ---------- Previous post was at 10:31 PM ----------
If you open any explorer app or music app do not appear the two USB ports and a GPS named drive?
If so...there is a hidden sdcard port
If not perhaps exists but no sdcard inserted
Enviado desde mi SM-G950F mediante Tapatalk
Click to expand...
Click to collapse
Nothing found for sd card.. I am a little desperate

Then you will have to build a otg cable by yourself
And connect that cable to a PC and try to load the firmware by using rockchip firmware tools
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---------- Post added at 10:37 PM ---------- Previous post was at 10:36 PM ----------
There is one tfcard port but not connected...perhaps buying a standard sdcard wire it will work
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xxgeorgegr said:
Nothing found for sd card.. I am a little desperate
Click to expand...
Click to collapse
Try each USB port if you can not find the SD card slot, usually there`s only one USB port can work for system updating.