Hi Friends,
This is my first post at XDA.
I unfortunately bricked my Panasonic P81 after rooting it and adding XHalo app and the boot manager app from the Xposed Framework.
The situation is as follows-
I can get to the logo, it screams Panasonic and then doesnt boot. I dont have CWA installed and worse, my SD card which had my stock backup is also lost. This means I need a mechanism to stock recover and perhaps flash boot.img and recovery.img?
I am stuck at this point, not sure how to proceed. I can get to recovery, have cleaned cache, backed up user data ,done a factory reset. Even after factory reset it still cant boot.
Please help me with a step-by-step instruction to recover, this phone is dear to me. How do I flash?(boot.img or rom) I have downloaded Sagar Patel's (good bless him!) backup and the images, but need guidance on how to flash and recover.
Please help friends and apologies for any incovenience. I am still a newbie
Guys please help!!
Driver-USB-PC connection problem
kartik.krish said:
Guys please help!!
Click to expand...
Click to collapse
Hope drivers are installed properly in your pc.
If you are going to use sp flash tool, Make sure SP flash tool is set to auto-detect com port, not manual selection
If you find that it is driver problem, following may help you.
Please note that there is nothing that much hard in driver installation as it is just to connect your device with your pc but because many users still face problem of driver installation, you can try following tricks!!!
It is observed by me that driver installation and adb interface problem do not happen in windows XP as eventually and generally it is happened in windows 7 and later…so, you can simply try on windows xp if you are able to do so…(you can use dual operating system too!!! Or good relation with neighbor/friends/colleagues/someone/all can be beneficial here!!!)
Note that all tricks here are not necessary to work, but it may still work for you….
Take one by one step, if the first step does not work for you, only then try next step. This is not all steps to be taken at once type guide…This is simply Try and error type tutorial/tricks…
There are following problems I have come to know regarding to driver installation and conflicts:-
Device is charging through usb cable but there is no usb option displaying on either device or no driver installation box/message/pop up appears in pc….
Missing sound of that usb-pc connection
Sound of disconnection after couple of seconds of connection
Adb interface is missing
Ok, sometimes changing usb connection type for example, from mass storage or mtp to camera, ptp, usb tethering or something else can bring adb interface…..
Try with different USB Cable. You can use original nokia or samsung tiny cable instead of cable having long length. Sometimes, length matters!!!!
Try in different USB Port.
Sometimes, you have to disable signature verification in your pc for proper installation of driver.
Had you disabled your antivirus before downloading, installing and while running your tools/softwares? You may need to do so…
Have you installed the software (or say, all associated softwares/tools) in C-System drive?, if not, then you should first install required software/tools in system drive that is usually C drive in Microsoft-Windows OS…or try after installing them on desktop.
Keep all necessary files/tools (driver files, flash tools, rom etc…) on desktop.
Download proper driver According to your model/device, According to chipset inside, According to Official site of manufacturer, Official site of chipset, through PC Suite/flash program of your device…
If the problem still not solve, you should try all available driver packages of your device one by one whether from official site of chipset inside your device, or any forum, adb, pdanet+ or foxfi, universal driver, VCOM Port driver, drivers from hexamob through play store, and find all possible packages and see if someone make positive result after installation…
If the problem still not solve, you should install remaining update packages of your system (PC) including all primary, secondary, essential, Non-essential updates….whatever, just install them all….reboot your pc…and see if problem is solved….
If you can connect the device but somehow found that device driver still not installed properly, just go to device manager in your pc, click on portable device, right click on your device and apply “Update driver”. Click on “automatically search” when a window prompt ask you.
If the problem still persists then,
Just remove all the drivers using usbdeview (I have given link also to download usbdeview in earlier post)
https://drive.google.com/folderview?id=0B511A2txfpAPbmwtQXZqbnVlT1U&usp=sharing
Install usbdeview and remove all the drivers
You can also fix this by showing the nonpresent devices in devicemanagement (google for show nonpresent devices for explanation)
Go to com ports, and delete all mediatek drivers except preloader driver. Now start over. It can help if you choose the same usb port where you had success last time.
Use Usbdeview to uninstall all the drivers before connection, restart the pc, Extract and keep driver zip files and other useful files/tools on desktop…just start your tool… and try to perform your tasks like backup…or restoring the backup…without worrying about that sound of disconnection you may listened after couple of seconds of connection or don’t even worry if you are just missing that sound of usb-pc connection….just try on your tool…
If still problem of driver installation persists, then simply use usbdeview and uninstall all drivers, restart your pc and try following steps:-
There are various ways to install proper drivers at the time of connecting the device with pc depending upon how you connect it.
Follow the procedure both with and without battery
Simply plug in via USB Cable
Connect by holding volume down button
Connect by holding volume up button
Connect by holding Power button
Connect by holding power and volume down
Connect by holding power and volume up
Connect by holding both volume up and down button
Connect by holding thrice volume up, down and power button
Connect by holding power and home button
Connect by holding power and menu button
Remember which method works and which drivers are installed
in LAN-Devices you may have different android device
Select/set drivers by hand and use the mtk usb driver, now Flashtool finds the phone
Suppose holding volume down method without battery works for you then what next you have to do is as below:-
1.TAKE THE BATTERY ,SD ,SIM OUT OF THE PHONE
2.HOLDING VOLUME DOWN CONNECT IT TO PC VIA USB(ONCE YOU HEAR A SOUND FROM PC YOU CAN RELEASE VOLUME DOWN)
3.OPEN DEVICE MANAGER(ON COMPUTER SEARCH IT OR CONTROL PANEL)
4.WAIT FOR 2-3 MINUTES
5.YOU WILL HEAR A SOUND & OTHER DEVICE WILL BE DISPLAYED
6.IN OTHER DEVICES ->MT65XX PRE-LOADER
7.RIGHT CLICK MT65XX PRELOADER
8.UPDATE DRIVER
9.LOCATE THE DRIVERS PROVIDED ACCORDING TO YOUR OS(VISTA,WIN7,XP)
10.IT WILL DO ITS STUFF
Install Mediatek drivers, preloaders, VCOM port etc…
Manually Install MediaTek USB VCOM Drivers
Requirement:-
1. Download MediaTek USB VCOM Drivers
2. Download USBDeview
Here is the link from you can get it:-
https://drive.google.com/folderview?id=0B511A2txfpAPbmwtQXZqbnVlT1U&usp=sharing
Procedure
(* Note: You might need to disable drivers signature verification in Windows for this to work smoothly.
If you want to turn off device driver signing in Windows completely, do the following.
Windows 7:-
1. Hit the Win+R keys together to open the run dialog
2. Type gpedit.msc to open the local groups policy
editor
3. Expand ‘Administrative Templates’ (it’s under ‘User Configuration’)
4. Expand ‘System’. Click ‘driver Installation’
5. In the right panel, double click on ‘Code Signing for Device Drivers’
6. Choose ‘Enabled’ in the window that appears.
7. In the underlying options, choose ‘Ignore’
8. This disables drivers signing in Windows 7, and now you can install unsigned drivers in Windows 7.
9. Click Apply, OK. Restart your computer to install unsigned drivers
Windows 8
1. Hold down the Windows key on your keyboard and press the letter C to open the Charm menu, then click the gear icon (Settings)
2. Click More PC Settings
3. Click General
4. Under Advanced Startup, click Restart Now
Note: In Windows 8.1, the ‘Restart Now’ button has moved to ‘PC Setting -> Update & Recovery -> Recovery.’
5. After restarting, click Troubleshoot
6. Click advanced options
7. Click Windows Startup Settings
8. Click Restart
9. After restarting your computer a second time,
choose Disable driver signature enforcement
from the list by typing the number 7 on your Keyboard Your computer will restart automatically.
10. After restarting, you will be able to install
unsigned drivers normally; however, Windows
will display a warning message. When the
warning appears, click Install this driver
software anyway. )
1. Install USBDeview and use it to uninstall all Vcom, Mediatek and Preloader drivers
1b. Extract the contents of the Mediatek USB VCOM file
2. In Windows, go to Control Panel and open Device Manager
3. Click any of the device groups (any of the items on the list) you see there, and then from Action menu, select Add legacy hardware
4. Add hardware wizard will be opened, click next
5. Select Install the hardware that I manually select from a list (Advanced)
6. Click next two times and click Have Disk button
7. Click browse and find where your driver's .inf file is, then select it (the .inf you'll select is located in drivers > USB Vcom driver > your OS) . Ensure to select the 64 bit .inf if your PC is 64 bit
8. Click Open and OK. You will see the drivers listed.
9. Select your driver there (select Mediatek Preloader USB VCOM Port)
10. Click Next and finish installing
11. If SP flash tool or other software still dont detect your phone then also install Mediatek DA VCOM (consider installing more from the list of drivers one at a time if need be)
Try in different PC
Sometimes windows XP works when windows 7 fails!!!
Case:-
It did the same thing with my MT6577 (Wiko Cink PEAX), so I connected it with a battery and without holding VOL+. Then "MT65xx preloader" appeared in device manager then disappeared (once). It is normal that it disappears. When you start Flash_tool and when you click Download (or whatever you want to do) THEN you connect the phone (in off state), and the flash operation will succeed.
Guess what? Once my Panasonic P81 could install driver and got detected after approx. 5 hours of continuous connection with win 7 x64!!! Meanwhile, I tried first usbdeview and then manually installation of mediatek driver but manual installation had failed as my p81 was only charging when it was connected with pc….So, mediatek – windows 7 conflicts….but, when I tried tiny (very small) nokia usb cable, it works instantly…
If you ever meet problem when you connect your android with your pc via usb cable and find that your android is charging but could not recognize or there isn’t that options of “USB connection” then just disconnect your android, power off it, remove battery, connect it without battery with your pc through usb, let it have some time to recognize your android or hear that voice of “usb connection” you were just missing…after that, insert battery and switch on your android…you are done!!!
Sometimes removing both sim cards and battery and then re-inserting them after a couple of seconds also works.
Try with different USB Cable
Try in different USB Port
Try in different PC
Sometimes windows XP works when windows 7 fails!!!
Use usbdeview to remove all the usb devices and then add your device
Find proper driver of your device:-
https://drive.google.com/folderview?id=0B511A2txfpAPbmwtQXZqbnVlT1U&usp=sharing
panasonic p81 soft bricked
SP flash tool detected my P81 mobile
but i need rom ROM files to flash
please any one give me rom file to flash Panasonic P81 with SP flash tool
problem solved?
I also had similar problem & solved it. Tell me if the problem is no solved.
damn i don't know what the hell is going on inside my computer but i am not able to get those drivers or i don't know what's the problem. please help me where to get drivers for my panasonic p81 mobile. it is softbricked and i want to install stock rom and i have that cpb files but that ygdp tool isn't working i am in total chaos.
help me please
kartik.krish said:
Yo! I had bricked it too and that too by Xhalomulti window cuz app window is sh!t..... be cool .there is stock rom available at www.xdafirmware.com....google it....also You will recieve a .zip... extract to get .cpb file and use YGDP (assembly:: if ask for password at ygdp type 369)......tap config select cpb. Wait ...connect usb and click start........ok tutorial on Internet.... IMPORTANT THING:: YOU'LL NEED MTK VCOM DRIVER PR ELSE IT WON'T WORK.
Sent from my Panasonic P81 using XDA Labs
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Click to collapse
Thanks so much mate! I fixed with the help of friends at XDA. Which ROM performs best on P81 which runs L or M? I am still on stock and need to upgrade. Do you have suggestions?
kartik.krish said:
Thanks so much mate! I fixed with the help of friends at XDA. Which ROM performs best on P81 which runs L or M? I am still on stock and need to upgrade. Do you have suggestions?
Click to expand...
Click to collapse
Brother I am tired of finding any rom other than stock.on internet there is miui 6 but most people complained it damaged their devices....no cyanogen OS,Color os ,Aokp,Ressurection remix,paranoid nothing........ok i found a phone named Doogee Dagger DG550 having same spects but better ui than playmore and that recently got kitkat too. Im thinking of trying it..if it fails i've
Panasonic original (ok modded a bit) firmware i can flash from ygdp tool..... actually Panasonic P81 is nothing but clone of coolpad 7320 with cool show replaced by playmore and the gesture is new....same multiwindow and the music cafe is nothing but coolpad music renamed....literally im using 7320 rom with build. prop changed so on apps it shows im using p81........Ok if you find rom please post link..... Ps ive tried roms on www.needrom.com but is hopeless.
Sent from my Panasonic P81 using XDA Labs
---------- Post added at 04:39 AM ---------- Previous post was at 04:34 AM ----------
kartik.krish said:
Thanks so much mate! I fixed with the help of friends at XDA. Which ROM performs best on P81 which runs L or M? I am still on stock and need to upgrade. Do you have suggestions?
Click to expand...
Click to collapse
In my opinion MIUI is best because it has a self large community like xda and launch updates per month so many that you will fed up installing them.....if you download and install one update you will be amazed that it will say 3 more system updates pending......and if you complain a bug next month it got fixed.....only thing is to find one...
PS don't download the miui 6 for p81..complained by many p81 user that it hard bricked the device.
And that miui is not official i.e. some developer made his own one and DO not tested that it works or not......
Sent from my Panasonic P81 using XDA Labs
Sir,My Panasonic eluga s is soft bricked, Not starting by pressing any key..it only Starts when connected to PC or charging.. That too in Fastboot mode.. While installing stock ROM using YGDP tool,I am not able to get my mobile in download mode..pls guide..
my panasonic p81 is hard brick,it is not detecting in pc by vcom and other drivers even not booting or charging,please help me devs.
I am connecting my p81 with my sound system but now i cannot hear the voice over a call properly plzz help me out
Flashtool doesn't detect Xperia M2 dual [D2302] on Windows 10 - Insider Preview (Build 10162)
I already installed Google USB drivers and the bundled Flashtool drivers, but nothing helped.
I need to flash stock firmware immediately, can any body help me to get through this?
How can i install /get drivers for W10?
we should get another pc with win7 and restore
Have you tried with disabled driver signature?
Disabling driver signature verification allows the flashtools driver instalation in Win 10. I've been using Win 10 since the first technical preview build, and disabling driver signature verification will do the trick.
How to Disable Driver Signature Verification on 64-Bit Windows 8.1 or 10
To disable driver signature verification, we’re going to need to get into the Troubleshooting options from the boot manager. The easiest way to bring this screen up is using a secret trick.
Simply select Restart from the power options menu (on Windows 8 that’s under Charms or on the login screen, and in Windows 10 it’s on the Start Menu).
Hold down the SHIFT key while you click Restart.
(Again, you can use this trick on any of the power menus in Windows 8 or 10, whether on the login screen, Charms bar, Start Menu, or Start Screen)
Once your computer has rebooted you will be able to choose the Troubleshoot option.
Then head into Advanced options.
Then Startup Settings.
Since we are modifying boot time configuration settings, you will need to restart your Computer one last time.
Finally, you will be given a list of startup settings that you can change. The one we are looking for is “Disable driver signature enforcement”. To choose the setting, you will need to press the F7 key.
This is not a question but instructions on how to flash this very rare phone (I could not find anything about this anywhere)
basically the company who makes it actually provides all the files but they are not easy to find
if you know what to do.. the ftp is located here
ftp://ftp.vonino.org/public/Firmware/
if you don't, continue on..
1. download the USB drivers and install them (sounds easier than it actually is)
here are some instructions from the company but they are in romanian
ftp://ftp.vonino.org/public/Firmwar...MTK/Vonino procedura actualizare software.pdf
but I can break it down for you (if you are on windows 10 x64 like): (info from here with some changes)
1.1 disable Windows 10 - 64 bit driver signature enforcement
- Click on Start then on Settings
- Click on Update & security then in the left pane click on Recovery
- Under Advanced startup click on Restart now button (you might wanna write the next parts on paper)
- Click on Troubleshoot then on Advanced options
- Click on Startup Settings then on Restart button
- The computer will restart with the Startup Settings screen
- To disable the driver signature enforcement until next restart press on number key 7 or F7 on your keyboard.
- wait for windows to start ..
1.2 install MTK VCOM USB Drivers
(I actually did this two times and will explain the two methods)
- download drivers from here https://www.androidfilehost.com/?fid=24269982087012126 and extract to a folder (1)
- download drivers from here http://ftp.vonino.org/public/Firmware/01_GENERAL_DRIVERS_FOR_MTK/ (Driver_Auto_Installer_v1.1228.00.rar) and extract to a folder (2)
ALTERNATIVELY to this next section you can just right click the inf file and click install.
- go to device manager (in w10 u can right click the start button and select it from the list)
- here select your computer THEN go to Action -> add legacy hardware
- On the Welcome to the Add hardware Wizard window click on Next button
- Select Install the hardware that I manually select from a list (Advanced) and then click on Next button
- Click on Show All Devices then on Next button
- In the Add Hardware window click on Have Disk… button
- In the Install From Disk windows click on Browse… button
- In the next window – Locate file – browse for the folder (1) that you have extracted on the desktop at the beginning
- Select the version of the driver according to your Windows 10 version – for 64 its "Windows 10 x64 MTK USB Drivers" (for 32 its Windows 10 x86 MTK USB Drivers)
- Click the OK button to load the driver
- From the list of drivers select MTK USB Port and click on Next button
- If a red warning window will open, click on Install this driver software anyway
- Now remove the device that was installed but leave the drivers in the operating system. (To do that in the Device Manager window expand Ports (COM & LPT) section, Right-click and click Uninstall on the MTK USB Port, making sure in the Confirm Device Uninstall window, that the box Delete the driver software for this device is empty)
- do this again for the other driver
- just this time browse for this folder Driver_Auto_Installer\SmartPhoneDriver\x64\Infs\ (or x86...)
- and select this file: usbvcom.inf
- then pick the first item.. DA USB VCOM Port
2. Download SP-Flash-Tool from ftp://ftp.vonino.org/public/Firmware/02_GENERAL_FLASH_KIT/SP-Flash-Tool-v5.1532.00.rar or http://tehnotone.com/download-sp-flash-tool-v3-v5-latest-versions/ and extract it
3. Download the latest stock ROM here
http://ftp.vonino.org/public/Firmware/Vonino_Smartphones/Jax_X/
- extract the contents of the zip file to a folder !
4. Flash the phone (https://androidmtk.com/flash-stock-rom-using-smart-phone-flash-tool)
so in order to do the actual flash
- turn off the phone and remove the battery (dont attach any cables to it yet)
- open flash_tool.exe
- select Firmware upgrade from the dropdown
- browse for the Download Agent and select the MTK_AllInOne_DA.bin in the SP-Flash-Tool folder.
- click on the Scatter-loading button and browse for the MT6580_Android_scatter.txt file located in the rom folder you extracted.
- click on the Download button
- connect the phone to the computer using the USB cable (with or without battery but it should be turned off)
- press the volume up and volume down buttons at the same time (I think this is optional, just wait and see if the download starts if not press the buttons)
- leave it to upload the new firmware, once its done a green button will appear
- close the flash tool and disconnect the cable
- start the phone and wait (for me it took about 7 minutes) but this will only happen the first time
hope this helps
ps: related to how I got into this predicament, if you gonna root your phone using Kingroot (it will work) DONT use SuperSuMe to try to remove Kingroot but keep root just coz the adds in the lock screen annoy you, it will boot loop your phone..
ps2: I hope Kingroot and all the other chineseroot ***** go bankrupt .. trying to brick my phone ..
Thank you so much. It wasnt easy but it worked perfect. Thank you for very detailed instructions it helped a lot. God bless you!
Can this phone support Android 7? I saw on the chinese shops that android 7 is rolling out on some MTK devices with 1GB of RAM?
Requirements;
==>A PC windows 7 preferably
==>Vcomm drivers manually installed on your PC if not installed follow this guide here to install it
==>Miracle box download
==>A USB chord that supports mass storage(that can send files when connected to system)
==>Your brain
Procedures
1. Diasble your antivirus otherwise it will delete miraclebox.exe extract miracle box now open miracle box
2. Click on the MTK tab
3. Click on the Unlock/fix tab
4. Tick the reset code
5. Click the dropdown menu to choose your android chipset type MT***
6. Click on the start button
7. Connect your phone to PC make sure it is switched of now (with the battery inside)
8. press the power button once this will make the phone communicates with the PC do not hold down the power button or else it won't work.
9. Wait till the process is done Disconnect your phone from pc then power it on.
Congratulations you just bypassed your pin, password and pattern unlock
Image tutorials
Hello guys am new here am not able to post links here for the miracle box and vcomm drivers kindly check my signature for it (techfashy.com)
fashrobbin said:
Hello guys am new here am not able to post links here for the miracle box and vcomm drivers kindly check my signature for it (techfashy.com)
Click to expand...
Click to collapse
my moto g4 plus is locked, its neither rooted nor USB debugging is enabled so is your method applicable in any way?
Only point that it is connected to wifi.