Android doesn't boot + app crashing - Lenovo P780

Dear all,
Please advise me with following problem.
I checked the forum but but didn't find same issue.
I have Lenovo P780, Android 4.4.2, assembly VIBEUI_V2.0_1447_7.48.1_ST_P780_baralajbi.
The thing is, that after restarting phone MOSTLY doesn't reboot (I must try it approx 20 times to reboot properly). Either the LENOVO logo depicts on the display or display becomes gray. Sometimes phone reboots, but after inserting PIN the message "Unfortunately System UI has Stopped." starts appearing in loop (each approx one second), so it's impossible to do anything on the phone. (And after another several tries it reboots normally. When it reboots NORMALLY, it plays starting melody with the logo - other times not.)
Before this unhappy state, problems started gradually by frequent crashing various apps (e.g. system web browser; "Unfortunately app XY has Stopped.") and by spontaneous restarts. I tried cache deletion and factory reset, but problems persist. It means that some apps crash after launching them AND phone can restart anytime and then it can take maybe one hour to boot Android properly.
Only solution that comes to my mind is to reinstall Android (it's question which RAM to use). But before that I'd like to ask for potential advice and experiences - what could be the cause and how to solve the problem. By the way, to actualize Android is also impossible, because the app crashes Deleting cache in case of particular apps also doesn't work.
Thank you in advance!

---

maherik said:
Dear all,
Please advise me with following problem.
I checked the forum but but didn't find same issue.
I have Lenovo P780, Android 4.4.2, assembly VIBEUI_V2.0_1447_7.48.1_ST_P780_baralajbi.
The thing is, that after restarting phone MOSTLY doesn't reboot (I must try it approx 20 times to reboot properly). Either the LENOVO logo depicts on the display or display becomes gray. Sometimes phone reboots, but after inserting PIN the message "Unfortunately System UI has Stopped." starts appearing in loop (each approx one second), so it's impossible to do anything on the phone. (And after another several tries it reboots normally. When it reboots NORMALLY, it plays starting melody with the logo - other times not.)
Before this unhappy state, problems started gradually by frequent crashing various apps (e.g. system web browser; "Unfortunately app XY has Stopped.") and by spontaneous restarts. I tried cache deletion and factory reset, but problems persist. It means that some apps crash after launching them AND phone can restart anytime and then it can take maybe one hour to boot Android properly.
Only solution that comes to my mind is to reinstall Android (it's question which RAM to use). But before that I'd like to ask for potential advice and experiences - what could be the cause and how to solve the problem. By the way, to actualize Android is also impossible, because the app crashes Deleting cache in case of particular apps also doesn't work.
Thank you in advance!
Click to expand...
Click to collapse
Hi.
What you have to do is:
1. Go to this post and download your phone firmware!
2. Go to this post and download latest MIUI from Bodia Kolibass in Mirror 9! You will fint in that folder Latest Kernel and i hope latest TWRP.
3. Read twice every tutorial and after reading twice try to flash all those things!
4. Reading twice is not optional!
5. After every install do at least one boot. Example: One boot after flash, One boot after instal MIUI.
6. After installing MIUI and boot at least once go to wifi and connect your phone. After that go to updater and look for update. Install update, boot at least once.
7. After the update is installed you are ready to use the phone.
7. If you have any problem PM me!
8. If this small tutorial helped you... press thanks button so everyone to know that this can help them too!
9. Good Luck!

---

stympy said:
Hi.
What you have to do is:
1. Go to this post and download your phone firmware!
2. Go to this post and download latest MIUI from Bodia Kolibass in Mirror 9! You will fint in that folder Latest Kernel and i hope latest TWRP.
3. Read twice every tutorial and after reading twice try to flash all those things!
4. Reading twice is not optional!
5. After every install do at least one boot. Example: One boot after flash, One boot after instal MIUI.
6. After installing MIUI and boot at least once go to wifi and connect your phone. After that go to updater and look for update. Install update, boot at least once.
7. After the update is installed you are ready to use the phone.
7. If you have any problem PM me!
8. If this small tutorial helped you... press thanks button so everyone to know that this can help them too!
9. Good Luck!
Click to expand...
Click to collapse
Hi stympy,
Thank you for your answer.
I'm just not 100% sure, which version (CN or ROW) should I use. I'm not able to find answer on internet. I have chinese letters on the battery and somehow I remember that it should mean that CN version is correct. Is it so please?
Thanks!
Petr

---

maherik said:
Hi stympy,
Thank you for your answer.
I'm just not 100% sure, which version (CN or ROW) should I use. I'm not able to find answer on internet. I have chinese letters on the battery and somehow I remember that it should mean that CN version is correct. Is it so please?
Thanks!
Petr
Click to expand...
Click to collapse
Hi. I used CN version of the firmware and worked well.
Like: all things are... Made in China... today... :laugh:
Soo... I know for sure that the ONLY difference between CN and ROW phones are the modems.
In all countries except China phones are sold for ROW version of the firmware.
Conclusion: you can use both of them.
But do not use ROW install firmware over CN base firmware. Use CN on CN and ROW on ROW.
For modem software you will find a post in General section named: How about some modems.
Read the tutorial from there.
Good luck.

---

stympy said:
Hi. I used CN version of the firmware and worked well.
Like: all things are... Made in China... today... :laugh:
Soo... I know for sure that the ONLY difference between CN and ROW phones are the modems.
In all countries except China phones are sold for ROW version of the firmware.
Conclusion: you can use both of them.
But do not use ROW install firmware over CN base firmware. Use CN on CN and ROW on ROW.
For modem software you will find a post in General section named: How about some modems.
Read the tutorial from there.
Good luck.
Click to expand...
Click to collapse
Yes,
that is what I mean. I don't know whether my base firmaware is CN or NOW. I bought this P780 from smaller eshop several years ago. Sometimes there appears a notice in chinese language, looking like clothes advertisement.
(Here https://forum.xda-developers.com/lenovo-p780/help/row-cn-how-to-check-t3333532
you answered that man that he has CN firmware. I have also VIBEUI......baraljabi.)
Do these things mean I have CN base firmware?
Thank you!
Petr

---

maherik said:
Yes,
that is what I mean. I don't know whether my base firmaware is CN or NOW. I bought this P780 from smaller eshop several years ago. Sometimes there appears a notice in chinese language, looking like clothes advertisement.
(Here https://forum.xda-developers.com/lenovo-p780/help/row-cn-how-to-check-t3333532
you answered that man that he has CN firmware. I have also VIBEUI......baraljabi.)
Do these things mean I have CN base firmware?
Thank you!
Petr
Click to expand...
Click to collapse
If you have Baralajbi firmware, your phone have CN base firmware.

---

stympy said:
If you have Baralajbi firmware, your phone have CN base firmware.
Click to expand...
Click to collapse
Thank you.
I downloaded CN, read some tutorials, installed USB drivers from https://forum.xda-developers.com/lenovo-p780/development/p780-row-s226-flash-flashtool-t2909202 (I have no idea whether MTK_USB__Driver installed and where, after install I cant find any change) and tried to run SP_Flash_Tool_v5.1352.01. But the tool doesn't recognize my phone. I have Windows XP.
When I turn phone on and connect, I am able to access both SD Card and Phone memory via PC, but when I turn it off, press Download in SPFT and connect the phone, it just starts to charge and nothing other happens. In the log there is repeatedly written "Scaning USB port failed!".
I spent quite a lot time looking for some solution. Do you please have an idea how to actualize the firmware?
Thanks!
Petr

---

maherik said:
Thank you.
I downloaded CN, read some tutorials, installed USB drivers from https://forum.xda-developers.com/lenovo-p780/development/p780-row-s226-flash-flashtool-t2909202 (I have no idea whether MTK_USB__Driver installed and where, after install I cant find any change) and tried to run SP_Flash_Tool_v5.1352.01. But the tool doesn't recognize my phone. I have Windows XP.
When I turn phone on and connect, I am able to access both SD Card and Phone memory via PC, but when I turn it off, press Download in SPFT and connect the phone, it just starts to charge and nothing other happens. In the log there is repeatedly written "Scaning USB port failed!".
I spent quite a lot time looking for some solution. Do you please have an idea how to actualize the firmware?
Thanks!
Petr
Click to expand...
Click to collapse
Look here
On post #19.
Tell me if this dont work !

---

Thank you. All works well up to point C.8. After I connect the phone I get error
BROM ERROR: S_FT_ENABLE_DRAM_FAIL (4032).
[EMI] Enable DRAM Failed!
[HINT]: Please check your load matches to your target which is to be downloaded.
As a solution I found trying another firmware (or scatter file). Now I used CN+ 4GB VIBEUI_V2.0.rar. Do you please know what can be reason for this error?
(Also since this error I'm not able to turn the phone in any way.)
Thanks
Petr

---

maherik said:
Thank you. All works well up to point C.8. After I connect the phone I get error
BROM ERROR: S_FT_ENABLE_DRAM_FAIL (4032).
[EMI] Enable DRAM Failed!
[HINT]: Please check your load matches to your target which is to be downloaded.
As a solution I found trying another firmware (or scatter file). Now I used CN+ 4GB VIBEUI_V2.0.rar. Do you please know what can be reason for this error?
(Also since this error I'm not able to turn the phone in any way.)
Thanks
Petr
Click to expand...
Click to collapse
Are you sure that your phone is 4Gb? Maybe is 8Gb? I am asking this just to be sure! If you know for sure that is 4Gb you should try SP Flash Tool v. 3! Sometimes, I don't know why, it works with this version of SP Flash Tool.
And none more thing.... try to quote me. I'll answer more faster.
Good luck.

---

stympy said:
Are you sure that your phone is 4Gb? Maybe is 8Gb? I am asking this just to be sure! If you know for sure that is 4Gb you should try SP Flash Tool v. 3! Sometimes, I don't know why, it works with this version of SP Flash Tool.
And none more thing.... try to quote me. I'll answer more faster.
Good luck.
Click to expand...
Click to collapse
Now I am not able to check it, but 99% I have 4GB.
One thing I didn't write before - after that unsuccessful try phone looks like to be uncharged - even if battery was nearly fully charged before. Interesting.
Anyways - after trying v.3 the process ended successfully. But after that phone is still dead - I can't power it on. I send the logs attached.
Maybe most interesting is message repeating in SP_FLASH_TOOL.log:
ERROR: OperationIndicator::QueryDADLHint(): da_dl_type(??) error, could not find DA download hint!(.\OperationIndicator.cpp,98)
Do you please understand this?
I admit I googled it just a little
Thank you.
Petr

---

maherik said:
Now I am not able to check it, but 99% I have 4GB.
One thing I didn't write before - after that unsuccessful try phone looks like to be uncharged - even if battery was nearly fully charged before. Interesting.
Anyways - after trying v.3 the process ended successfully. But after that phone is still dead - I can't power it on. I send the logs attached.
Maybe most interesting is message repeating in SP_FLASH_TOOL.log:
ERROR: OperationIndicator::QueryDADLHint(): da_dl_type(??) error, could not find DA download hint!(.\OperationIndicator.cpp,98)
Do you please understand this?
I admit I googled it just a little
Thank you.
Petr
Click to expand...
Click to collapse
Sooo....
Ok. You must tell me if you still have the original box of the phone!
If you have it look on the side and see if your phone is made after 03.2014 or on 03.2014.
If the answer is yes you must repeat the flashing procedure with the new preloader.
Here is the new preloader.
Replace the preloader in your folder and delete any *.ini file if you have one there!
Good Luck!

---

stympy said:
Sooo....
Ok. You must tell me if you still have the original box of the phone!
If you have it look on the side and see if your phone is made after 03.2014 or on 03.2014.
If the answer is yes you must repeat the flashing procedure with the new preloader.
Here is the new preloader.
Replace the preloader in your folder and delete any *.ini file if you have one there!
Good Luck!
Click to expand...
Click to collapse
OK, at home I will try to find it.
But I don't understand under which condition I need to use new preloader - if phone is made on 03.2014?
Thank you!
Petr

---

maherik said:
OK, at home I will try to find it.
But I don't understand under which condition I need to use new preloader - if phone is made on 03.2014?
Thank you!
Petr
Click to expand...
Click to collapse
On and after 03.2014.
My advice is to use the new preloader anyway.

---

stympy said:
On and after 03.2014.
My advice is to use the new preloader anyway.
Click to expand...
Click to collapse
Good,
it works now. Thank you!
So, now I should install newest TWRP and MIUI. Before it I'd like to ask some things to be sure I understand what I do.
That new TWRP is just because of MIUI, without it the current version of TWRP would be good enough?
Why need I to install MIUI? Is it more stable than current software? (Now phone looks like being usable again.)
After having the newest TWRP, shall I follow by making backup, copying the MIUI files to SD card and install via TWRP? (there are tutorials, but still I'm not sure about these basic things).
Thank you
Petr

---

maherik said:
Good,
it works now. Thank you!
So, now I should install newest TWRP and MIUI. Before it I'd like to ask some things to be sure I understand what I do.
That new TWRP is just because of MIUI, without it the current version of TWRP would be good enough?
Why need I to install MIUI? Is it more stable than current software? (Now phone looks like being usable again.)
After having the newest TWRP, shall I follow by making backup, copying the MIUI files to SD card and install via TWRP? (there are tutorials, but still I'm not sure about these basic things).
Thank you
Petr
Click to expand...
Click to collapse
You are right. The old Kitkat software becomes unstable after a period of time.
MIUI is still under development. You will get updates a period of time.
Latest TWRP have less bugs.
And he. Before one major change I recommend a full backup.... this backup is for.... just in case...
If you follow the steps there, you will get the perfect results. The steps are tested and redone over the last years.
If you have MIUI questions we will move our q&a in the right post... MIUI post i mean....
Good luck.

---

stympy said:
You are right. The old Kitkat software becomes unstable after a period of time.
MIUI is still under development. You will get updates a period of time.
Latest TWRP have less bugs.
And he. Before one major change I recommend a full backup.... this backup is for.... just in case...
If you follow the steps there, you will get the perfect results. The steps are tested and redone over the last years.
If you have MIUI questions we will move our q&a in the right post... MIUI post i mean....
Good luck.
Click to expand...
Click to collapse
OK. I installed MIUI, rebooted and then installed also kernel. Is there big difference beetwen this kernel and kernel included in MIUI? (If you know.)
You wrote "6. After installing MIUI and boot at least once go to wifi and connect your phone. After that go to updater and look for update. Install update, boot at least once." When I try to install update it never starts to download. (It writes "Waiting for connection" in "Downloaded" section.) Do you please know what can be the cause?
Additionally, for sure: Can't that update overwrite the new kernel?
Anyways THANK YOU!!!
My phone is alive again.
Petr

---

maherik said:
OK. I installed MIUI, rebooted and then installed also kernel. Is there big difference beetwen this kernel and kernel included in MIUI? (If you know.)
You wrote "6. After installing MIUI and boot at least once go to wifi and connect your phone. After that go to updater and look for update. Install update, boot at least once." When I try to install update it never starts to download. (It writes "Waiting for connection" in "Downloaded" section.) Do you please know what can be the cause?
Additionally, for sure: Can't that update overwrite the new kernel?
Anyways THANK YOU!!!
My phone is alive again.
Petr
Click to expand...
Click to collapse
For the part with kernel... I never thought to look for that...
For the part with update... i think... something is wrong... it seems to me that your phone is reacting like is on mobile data.
This is not a big thing... try to go to download icon, enter, go to download settings an see what is going on there...
Sometimes, I don't know why, the phone react like is on mobile data... when is on wifi...
After an while or after one reboot the phone will download the update.
I have to apologise to you, but what I am writing now is from my experiences with this phone. I do not have the phone no more.
I have now Lenovo P1 Pro.
Good luck.

---

stympy said:
For the part with kernel... I never thought to look for that...
For the part with update... i think... something is wrong... it seems to me that your phone is reacting like is on mobile data.
This is not a big thing... try to go to download icon, enter, go to download settings an see what is going on there...
Sometimes, I don't know why, the phone react like is on mobile data... when is on wifi...
After an while or after one reboot the phone will download the update.
I have to apologise to you, but what I am writing now is from my experiences with this phone. I do not have the phone no more.
I have now Lenovo P1 Pro.
Good luck.
Click to expand...
Click to collapse
OK, it looks like system update shouldn't overwrite custom kernel. Anyways the update doesn't download (it tries to download to phone memory instead of SD card, although I set it, but still there should be enough space in phone memory; neither I wasn't successfull when downloading it directly on PC).
I will wait and see.
So, thank you for all your help!!
I consider this thing as closed.

---

maherik said:
OK, it looks like system update shouldn't overwrite custom kernel. Anyways the update doesn't download (it tries to download to phone memory instead of SD card, although I set it, but still there should be enough space in phone memory; neither I wasn't successfull when downloading it directly on PC).
I will wait and see.
So, thank you for all your help!!
I consider this thing as closed.
Click to expand...
Click to collapse
Good luck!