No rom, Perma-locked boot loader - Xperia SP Q&A, Help & Troubleshooting

Whilst installed the Omni rom my xperia shat itself, and rebooted before it could install anything.
Now as a result, if I turn on my phone, it will display the sony logo, then fade out to red, and repeat until I shut it down using the reset button.
There seems to be no option to use any of the three recoveries I installed, booting into fastboot will actually show a red light briefly however. Then it will restart again.
Flashmode seems to work, but again MY BOOTLOADER IS LOCKED. Flashtool flashes an image, says I need the according fsc script to flash my device AND it should be in debugging mode. But it says it's completed anyway.
(Which is a lie, nothing changes)
Using the Emma flasher just shows that my device is locked.
Help.

--Solved--
http://forum.xda-developers.com/xperia-sp/help/speed-xperia-helps-t3188263/post62607334

Related

Bootloop

I rooted my Xperia Z (via http://forum.xda-developers.com/showthread.php?t=2186368) and it was working perfectly fine for quite some time... now it gets stuck in a bootloop every time I try and restart it.
So, the information that I have:
The device has a locked bootloader, I rooted it using DooMLoRD's thread, linked above.
It worked for a while. I installed Titanium Backup.
When I turn the device on, it gets stuck in a bootloop.
When I plug it into my computer and hold the vol +, I get a blue LED and nothing else.
When I plug it into my computer and hold the vol -, it flashes red then green very quickly, then the LED turns off.
Nothing happens if I tap the vol+ during boot.
I'm trying to piece things together from other threads on the forum, but to no avail.
I found a thread started by someone with a similar problem (http://forum.xda-developers.com/showthread.php?p=38669779), but he doesn't say how he eventually fixed it.
Could anyone give me some advice or step-by-step guidance on how I should proceed?
Thanks!
I am having the same Issue:
Locked bootloader (Three UK network - bootloader unlock allowed:NO)
Rooted, Then installed "recovery for locked bootloaders"
Tried to flash rom, gave error code 7 for the zip, flash failed.
Now bootlooping, Cant get green LED with volume DOWN, But can get blue LED....
I think the blue LED is for fastboot, and apparently that only works with unlocked bootloaders.... Is that correct ?
adamryd said:
I am having the same Issue:
Locked bootloader (Three UK network - bootloader unlock allowed:NO)
Rooted, Then installed "recovery for locked bootloaders"
Tried to flash rom, gave error code 7 for the zip, flash failed.
Now bootlooping, Cant get green LED with volume DOWN, But can get blue LED....
I think the blue LED is for fastboot, and apparently that only works with unlocked bootloaders.... Is that correct ?
Click to expand...
Click to collapse
Never mind, now solved
It seemed, that when stuck on the Sony logo loop, If I held volume UP and power button (to force a restart) it would vibrate once, then immediately switch my finger to the volume down key (AND HOLD) the flashtool program would recognize the device in flash mode
(even though there was no green LED on the device indicating it was in this mode, IN FACT, the phone just looked like it was completely dead whilst i flashed it with Stock unbranded firmware... but it worked)
Moral of the story .. persevere !
Hope you sort your issue too
adamryd said:
I am having the same Issue:
Locked bootloader (Three UK network - bootloader unlock allowed:NO)
Rooted, Then installed "recovery for locked bootloaders"
Tried to flash rom, gave error code 7 for the zip, flash failed.
Now bootlooping, Cant get green LED with volume DOWN, But can get blue LED....
I think the blue LED is for fastboot, and apparently that only works with unlocked bootloaders.... Is that correct ?
Click to expand...
Click to collapse
You can recover using flash tool. Use my guide to get your ftf if you don't have one and then you can reflash it in fast tool
Sent from my C6603 using xda premium

D5833 Stuck on boot ~SOLVED~

Help me please,
I was installing cm12 bootloader unlocked and all and device rebooted all of a sudden (i did all wipes)
And now it just shows the "Sony Xperia" screen
And i presume there is now no OS installed,
i can't get into recovery or anything!!
SOLUTION
held down power and volume buttons then entered flash mode, flash tool seems to be flashing the data now

HELP: Stuck on sony screen after installing ROM

edit: fixed it, just flashed a stock FTF, i'll dot the whole process again later on and hope this time it works out
You can close teh thread (i've tried to delete it but can't find the option)
I've just checked that I can boot my phone and recovery works. But for instance when i try to put service mode it gives an error with IMEI
edit: i've booted to the other recovery (using volume up) and installed the pre-rooted FW again. Shut down and tried again the flashmode process but still no luck, red and quick green light. After booting the phone, it seems to work basically, but wifi not working, it doesn't turn on.
What should the next step be?
The computer does not recognize the phone when my connect it to the USB port, not even charge. The only thing that happens is a flash of red light then green light. Same thing if phone is shut down when i connect the usb cable, red flash, then sony screen appears, then green light, and finally it vibrates two times before showing the level of battery, but without actually charging it.
Anf if i try a Vol Down+Power when in standby and connect with usb cable, it shows a quick red then green flash, and then nothing.
Ok i fixed that problem apparently the USB cable decided to stop working...
Now i have another problem as I decided to install the deodexed ROM and now my phone gets stuck at the sony screen and i can't even boot to recovery.
What i did to install:
Boot to recovery using Volume Up (PhilZ)
Prepare to install new rom (which formats Data, cache, etc)
Install ROM form SDcard1
Everything went fine but at the end it says "root lost or something" I put yes, then rebooted to system, and got stuck on sony screen....
What did i do wrong and how to fix it??
Thanks for the help!

Need assistant on my Sony Xperia SP (C5303)

just recently, I just downgrade my phone from CM11 (KitKat) to JellyBean. there's some error while flashing the rom. Im quiet sure about it. whats more important is that now my phone just cannot boot properly, when I start the phone its vibrate like always with green led and right after the SONY logo, my phone just switch off.. I cannot access anything even recovery mode. and there is one another problem, when I plug in usb, green led light shows up, later for about a minute my phone automatically boot up with RED led then just after SONY logo it switch off again, and then goes green led on back and red led comes again off right after every SONY logo, just like ON and OFF again & again..
Sorry I dont know how to describes it, and sorry for my bad english if you guys find it hard to understand. PLEASE help in this case!! Thank you in advance!
You must enter fastboot mode. Erase the boot section and flash a new boot image (.img) or a kernel .elf file.
Use the commands:
> fastboot erase boot
> fastboot flash boot boot.img or fastboot flash boot boot.elf
> fastboot reboot
After that, if the boot.img contains a recovery system, it would be installed and now you can enter recovery again and reflash your rom.
I think that any boot.img inside a CM Rom zip file have a recovery system.
Are you familiar with fastboot mode? How to enter, usage, drivers?
Please give me the instruction on using fastboot. Im not very familiar with fastboot.
How can I find the img, where to download? and how to use it.
Thanks by the way for tips, I think I've been using the wrong rom, I dont know which is the right rom to downgrade to stock.
If you want to downgrade to stock i'd recommend you to use the Flash tool for Xperia.
You can download it here => http://developer.sonymobile.com/downloads/tool/flash-tool-for-xperia-devices/
Follow these instructions => http://developer.sonymobile.com/services/flash-tool/use-the-flash-tool-for-xperia-devices/
You need to do the step 4 right for it to work.
I guess it will solve your problem.
If you have any other question, just ask.
As I mention before on the previous post, the problem is every time I plug-in usb the device keep on connected and then disconnected. on and off, and booting itself with red led till the SONY logo come off its shutdown and green light appeared again. Its like not properly connecting the device.
Is that okay to go on flash mode? may it not been error before operating this?
ForbiddenSiren said:
As I mention before on the previous post, the problem is every time I plug-in usb the device keep on connected and then disconnected. on and off, and booting itself with red led till the SONY logo come off its shutdown and green light appeared again. Its like not properly connecting the device.
Is that okay to go on flash mode? may it not been error before operating this?
Click to expand...
Click to collapse
Keep the usb connected.
When it reboots, before the sony logo appears, keep the volume down key pressed. When the light turns green, the phone entered the flash mode and you can release the volume down key. I dont know if it will reboot again. If the phone enters flash mode (green light) and reboots after that, maybe is a driver issue. In fastboot mode (volume key up + blue light) sometimes this heappens. I dont know about flash mode.

[Troublshoot]Phone is stuck on bootloop, can't access recovery mode

I'm new to this business so I might not know everything.
I wanted to install Lolipop on my xperia sp using cyanogenmod 12.1. I rooted it with towelroot, got superuser and installed Rashr to get a recovery mode program. It asked me to make a back up first, so I did. Then I went on an selected TWPR img and it flashed a partition but didn't reboot as it asked me to, I then realized I missed some steps in the installation process.
So I went on and used the backup Rashr made and it also cleaned a partition. Then I rebooted. Since then, it's stuck in bootloop, the screen flashes on and off just pure black and never reaches the logo just solid black. I tried turning it off from the back, going into recovery mode but I couldn't(I held the buttons for at least 2 min and it wouldn't work), it would just light the blue led for a little and then resume to the loop.
PC, Sony companion doesn't recognize it. It only sees it when I try to go into recovery mode(power + volume up) while it is plugged in and appears in device manager as "S1boot Fastboot", I left it for a good 10 min to install the driver, but it wouldn't.
I don't have bootloader unlocked. Right now I left it on so it could drain the battery, but it should take a long time for that to happen. Please help me!!
FIXED
After looking for other fixes, I found this guide and it worked just great.
I've a problem:
My phone is unlocked, UBL, with original 205 firmware. Sometimes it's turned off, the boot was problem: few bootloot before load the system. I installed twrp and cwm, but reinstall twrp, from twrp, and it's the problem. If I power on in flash mode, the phone exit from flash mode after 43 sec. and light is red. After 63 sec go to back to flash mode. I don't flash my phone. Help please! Sorry my english.

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