Develop Bugs

desire z stuck on android skaters screen

Hello Everyone, I am a totally newbie.
I had a opening problem of Desire z with my first time root tried.
I followed every instructions, first of all it seems that everything was ok,
after adb settings, it was stuck on HTC logo screen. so I started with Hboot menu and I had to choose factory settings, secondly I cleared wipe datas, after it my phone was rebooted,
Now my phone was stuck on 03 green android robot which are skating on white screen. There is no text at the top or bottom.
For now i can not use hboot menu even I tried volume down + power button.
There are some options;
When ever I tried to press and hold volume up + volume down + power = it
has vibrated 4-5 times and green red light blinks.
Screen is black and nothing happen
When ever I tried to press and hold volume down + power = red led ligt blinks
I also tried to plug it on my computer via USB, nothing changes. Only my computer recognise a usb entrance but can not find any driver ( it is the same sound when you plug a usb into your computer)
I hope that I can explain my problems....
Waiting for your help, thanks

no reply i'm losing my hope to get my phone back

can you show a link to which guide you followed and where things went wrong exactly, also if you remember any specifics about your phone before you started

HTC Desire HD won't boot up (rooted)

My friend gave me HTC Desire HD (for free) saying I could keep it. It worked for about a month and then out of nowhere just stopped working.
I tried:
- Holding power button
- Holding power + volume button
- Holding power + other volume button
But nothing happens.
When I connect it to USB cable, an orange dot starts blinking on the left top of the phone and ClockWorkMod opens (note: I'm not pressing ANY button, it opens itself).
But after Clockworkmod opens, it closes before I can get to do anything. Clockworkmod is there for about 5-10 seconds and then the phone shuts back down and I need to reconnect it to usb cable again to show clockworkmod again, or sometimes the clockworkmod shows itself back again for no reason.
I tried doing some stuff like installing rom from sdcard, but clockwork mod closes before I can even choose any option, or even if I do get to choose it, the screen turns black again in the middle of the operation.
I sadly don't have any other info on the phone at the moment because my friend isn't available, All I can tell is that the ClockworkMod is version v5.0.2.7 and it says "Ace hack kit" with blue font in the middle of the screen.
I need the phone for development purposes so it would be really great if someone could help me fix it, any idea what could be wrong? thank you!
EDIT: I also have no information on which ROM was on that phone and if it is really rooter or not (but since there is ClockworkMod on it I'm almost sure it was rooted, I don't know much about that stuff though so I can't say anything

whizslo said:
I tried:
- Holding power button
- Holding power + volume button
- Holding power + other volume button
But nothing happens.
When I connect it to USB cable, an orange dot starts blinking on the left top of the phone and ClockWorkMod opens (note: I'm not pressing ANY button, it opens itself).
Click to expand...
Click to collapse
Can you get to fastboot if you hold down vol down while you plug it in (from completely off)? This would help to get some more info on the phone status.

Help Can't access Bootloader

Hi All,
I have an international HTC ONE M8 which I managed to root and s-off without a problem. However since I s-off-ed the phone will not reboot into bootloader.
When I try to power off and reboot with vol-down and power it either reboots or flashes between the battery screen and TWRP, which say swipe to unlock but it flashes too quick for mee to do this. This a strange error I never come across before in the years Ive been flashing and modding devices.
Also ADB no longer sees this phone in fastboot, I can issue fastboot commands but not ADB
Can anyone help

Jonnibravo said:
Hi All,
I have an international HTC ONE M8 which I managed to root and s-off without a problem. However since I s-off-ed the phone will not reboot into bootloader.
When I try to power off and reboot with vol-down and power it either reboots or flashes between the battery screen and TWRP, which say swipe to unlock but it flashes too quick for mee to do this. This a strange error I never come across before in the years Ive been flashing and modding devices.
Also ADB no longer sees this phone in fastboot, I can issue fastboot commands but not ADB
Can anyone help
Click to expand...
Click to collapse
Press and hold power and volume up until phone shuts off. Let go of power and volume up then hold volume down until bootloader comes up -_-

exad said:
Press and hold power and volume up until phone shuts off. Let go of power and volume up then hold volume down until bootloader comes up -_-
Click to expand...
Click to collapse
Genius, thanks. I'm too used to my other devices where you simply did the power button down.

Jonnibravo said:
Hi All,
I have an international HTC ONE M8 which I managed to root and s-off without a problem. However since I s-off-ed the phone will not reboot into bootloader.
When I try to power off and reboot with vol-down and power it either reboots or flashes between the battery screen and TWRP, which say swipe to unlock but it flashes too quick for mee to do this. This a strange error I never come across before in the years Ive been flashing and modding devices.
Also ADB no longer sees this phone in fastboot, I can issue fastboot commands but not ADB
Can anyone help
Click to expand...
Click to collapse
You might also try making sure Fastboot in the power menu is off. And ADB won't work in Fastboot mode - you either have to boot into recovery or android for ADB.
Sent from my HTC One_M8 using Tapatalk

Something happened to my M8 so I can't access bootloader anymore. Pressing Power and Vol Up just boots the phone and then the screen goes blank. Pressing Vol Down to get into fastboot doesn't work anymore (it used to up until now). Any clue?

mpogr said:
Something happened to my M8 so I can't access bootloader anymore. Pressing Power and Vol Up just boots the phone and then the screen goes blank. Pressing Vol Down to get into fastboot doesn't work anymore (it used to up until now). Any clue?
Click to expand...
Click to collapse
Press and hold the volume down, then at the same time press and hold the power button (both should be held now).
Wait for the screen to go blank.
When the screen goes blank, release the power button, but continue to hold the volume down button.
You should then eventually see the fastboot/hboot menu.

OK, found what the issue was. The problem was that my phone's screen was going blank after the normal boot screen, so I couldn't see when it gets turned off. I was simply pressing the Vol Up + Power for too long, so it would go into full reboot. I just measured the amount of time it was taking to do this (was ~12 seconds). So I pressed Vol Up + Power for ~10 secs, then released those and pressed Vol Down. That finally brought me into Fastboot.
I could have probably gotten the same result by pressing Vol Down + Power, however, the phone screen was blank all the time, so it was difficult to understand when I should have released the Power button to let it go into Fastboot.

mpogr said:
OK, found what the issue was. The problem was that my phone's screen was going blank after the normal boot screen, so I couldn't see when it gets turned off. I was simply pressing the Vol Up + Power for too long, so it would go into full reboot. I just measured the amount of time it was taking to do this (was ~12 seconds). So I pressed Vol Up + Power for ~10 secs, then released those and pressed Vol Down. That finally brought me into Fastboot.
I could have probably gotten the same result by pressing Vol Down + Power, however, the phone screen was blank all the time, so it was difficult to understand when I should have released the Power button to let it go into Fastboot.
Click to expand...
Click to collapse
Thanks for this post! I've spent a total of 5+ hours trying to get into the bootloader so I could restore a backup after a bad flash soft bricked me.

"Press and hold power and volume up until phone shuts off. Let go of power and volume up then hold volume down until bootloader comes up -_-"
Holy mackerel! You saved me! The Blackhawks are playing and I need to be able to text my mom and cousin. I was having a mini-panic attack. Your fix worked like a charm. I am back in texting business!!! Thank you, thank you, thank you! Go Hawks!

i have a htc one m8 and its stuck on the logo with triangles around the four corners around the screen..what do i do?

antonio14843 said:
i have a htc one m8 and its stuck on the logo with triangles around the four corners around the screen..what do i do?
Click to expand...
Click to collapse
The red triangle screen is stock recovery. Power + vol up when on the stock recovery, will bring up the recovery menu.
Not sure what you are trying to do. Based on the subject of this thread you decided to post in, are you trying to get into bootloader? Or just trying to get the phone to boot to OS?
If you are trying to get into OS. You can try to wipe cache, and reboot to see if you can reboot back into OS (or factory reset and reboot, if you don't mind losing your personal data). But depending on what is wrong with the phone, you may need to do more to get into OS.

Can't access bootloader
exad said:
Press and hold power and volume up until phone shuts off. Let go of power and volume up then hold volume down until bootloader comes up -_-
Click to expand...
Click to collapse
Everytime I do this, hold POWER, then VOL UP till screen goes black, release BOTH, then press POWER and VOL DOWN, then release POWER first time screen flashes, while still holding VOL DOWN, it returns to the OS every time!
Everytime I do this, hold POWER, then VOL UP till screen goes black, release BOTH, then press POWER and VOL DOWN, then release POWER first time screen flashes, while still holding VOL DOWN and then press POWER again, the screen CYCLES between BLACK and the RASTER glow on the LCD. About 3-4 secs of BLACK, then RASTER glow, then repeat. If I let go of POWER, it goes right to the OS again, every time.
Everytime I do this, hold POWER, then VOL UP till screen goes black, release BOTH, then press POWER and VOL DOWN, wait for RASTER glow and continue to press BOTH until first time goes BLACK, then release POWER while still holding VOL DOWN, it goes right to the OS again, every time.
I don't know what I'm doing wrong. I followed the HTC directions at the DEV site, to change the boot speed, but it wasn't in the BATTERY menu, it was in ACCESSIBILITY and called QUICK BOOT. For units with Android 4.2.x and up, HTC site said to turn on OEM unlocking in Developers menu, but this is 4.4.2 and there is no option in there to do that.
This is a DUAL SIM phone, so I assume that is an international version, also.
Further, when I do try the HTC site method of entering the bootloader menu, (press Volume Down and while pressing Volume Down, press Power holding both buttons to start the device into Bootloader mode (now Download mode for One M9 and newer devices) I get a menu
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
, but I don't read Chinese/Korean, or whatever language these characters are from, but it works like a TEST or SERVICE menu, as it puts the phone thru all the self-tests of its' various hardware functions. Not much help to me.
This phone has a crashed Android update that never completes every time it starts, but I can't tell what version or from whom. It does not APPEAR to be locked to any carrier as there are no logos on the phone or in the bootup screens. If I can every get it where I can flash it, then I hope to learn WHAT there is to flash it with.
Right now, I just want to get to the bootloader, so I can see if it will talk with the laptop using the apps I downloaded from HTC; Android studio, Java and the Sync Manager. Once all those hurdles have been jumped, if it succeeds and functions properly, and flashing rids it of the nasty malware, xrated crap its' infested with, I'll order a glass to repair it make it my own for a while.
Any help figuring out why I can't make the VERY CLEAR instructions I found in this thread work for me, will be very, very, VERY much appreciated.
Thanks to you all.

There is no "then press POWER and VOL DOWN" in the instruction, after release both power & volume up, press only volume down button.
What device is that ? Definitely not M8 & not M8 dual SIM.
If you still can boot, enable usb debugging in Developer options then run adb devices to see the serial no.
If it come out as weird as 123456789abcdef then it's fake htc.
Your screenshot looks familiar and I manage to find the same that written in English
https://forum.xda-developers.com/showpost.php?p=50678371&postcount=3

Can't access bootloader
ckpv5 said:
There is no "then press POWER and VOL DOWN" in the instruction, after release both power & volume up, press only volume down button.
Click to expand...
Click to collapse
I was very frustrated by the directions I got from HTC inserted below:
press Volume Down and while pressing Volume Down, press Power holding both buttons to start the device into Bootloader mode (now Download mode for One M9 and newer devices). If you have difficulty, power up normally, go to Settings->Battery and deselect Fast boot. Power down and try again.
Click to expand...
Click to collapse
Then I came here after a Google search listed many hits, this one seemed like the best (as always XDA would be my first choice) of them all. Then I tried the button instructions here. But all led to further frustrations. I am an antiquated fossil of 63 years old, a mere high school graduate of the Class of 1971, a once upon a time in dog years (1996-1998), Novell NetWare CNA/CNE network geek, PC/server hardware tech, systems programmer, systems analyst, and Windows OS & Office Suite Desktop End-User Support Specialist. In other words, I am qualified to not only read English, I can even compose my thoughts and present them using it.
Most of the time.
What device is that ? Definitely not M8 & not M8 dual SIM.
Click to expand...
Click to collapse
Great question!! Unfortunately, the answer may be the solution to at least most of the problem. The next question would be "What implications does that present? Does that make it irreparable and essentially worthless?"
The serial number is EXACTLY what you posted;
123456789ABCDEF
Just to be thorough, here are the other details. But, I did NOT get these using ADB, because I can NOT get ADB to work at all. These details came from About Phone.
IMEI Slot1: 355131214676268
(I forgot the label): 78
IMEI Slot2: 355131214676276
(?????????? label): 78
S/N: 123456789ABCDEF
Model: M8
Android version: 4.4.2
Baseband:
MOLY.WR8.W1315.MD.WG.MP.V43, 2014/09/17 10:10
Kernel: 3.4.67 [email protected] #1 Thu Sep 24 09:46:01 CST 2015
Build Number: X5_72KK_KK_3GW_B15_EMMC_32_4_QHD_XLD_MII_ZX 20150924.103623
Custom Build Version: 1442306041
If you still can boot, enable usb debugging in Developer options then run adb devices to see the serial no.
If it come out as weird as 123456789abcdef then it's fake htc.
Click to expand...
Click to collapse
Needless to say, but I already told how I got this. I don't mean to sound like a smartass, but I can't help it. I flashed and modded my first Motorola Droid back in 2012. This ain't my first rodeo, its' just that this phone has been one of the more frustrating broncs I've tried to break lately. If this is a "FAKE" HTC phone, I would not be surprised to learn that. I had not been aware until now that there are fakes.
I mean, WTF?
Your screenshot looks familiar and I manage to find the same that written in English
https://forum.xda-developers.com/showpost.php?p=50678371&postcount=3
Click to expand...
Click to collapse
Yep. Now, what do you recommend? WAIT!
I want you to know that I followed the link to your GUIDE. Very Well done, sir.
I found it remarkably well organized, detail specificity very professionally presented, and written for a layperson without sacrificing the value of educating them with vernacular of the high level technician. I commend you.
With that said, whether ir is while I have the OS up, or from recovery menu ADB function, this is what I get when trying to use ADB on this potentially worthless waste of time:
C:\Program Files (x86)\Minimal ADB and Fastboot>adb start-server
adb server version (31) doesn't match this client (35); killing...
error: protocol fault (couldn't read status): Connection reset by peer
error: could not install *smartsocket* listener: cannot bind to 127.0.0.1:5037: Only one usage of each socket address (protocol/network address/port) is normally permitted. (10048)
could not read ok from ADB Server
* failed to start daemon *
error: cannot connect to daemon
AND
C:\Program Files (x86)\Minimal ADB and Fastboot>flashing get_unlock_ability
adb server version (31) doesn't match this client (35); killing...
* daemon started successfully *
error: no devices/emulators found
So, with all that, what say you to my question, "Now what?"
My Opinion, if it is a fake, disassemble it to explore the guts,
like a 1st year med-student exploring human anatomy on a
homeless, unidentified cadaver from the Morgue.

dbreed53 said:
Just to be thorough, here are the other details. But, I did NOT get these using ADB, because I can NOT get ADB to work at all. These details came from About Phone.
IMEI Slot1: 355131214676268
(I forgot the label): 78
IMEI Slot2: 355131214676276
(?????????? label): 78
S/N: 123456789ABCDEF
Model: M8
Android version: 4.4.2
Baseband:
MOLY.WR8.W1315.MD.WG.MP.V43, 2014/09/17 10:10
Kernel: 3.4.67 [email protected] #1 Thu Sep 24 09:46:01 CST 2015
Build Number: X5_72KK_KK_3GW_B15_EMMC_32_4_QHD_XLD_MII_ZX 20150924.103623
Custom Build Version: 1442306041
If this is a "FAKE" HTC phone, I would not be surprised to learn that. I had not been aware until now that there are fakes.
Click to expand...
Click to collapse
It's a clone HTC that we know existed since 2014 and nothing much that we can offer to help.
See this for some screenshots - https://forum.xda-developers.com/htc-one-m8/help/token-initializer-chinese-htc-one-m8-t2813316
There's a screenshot about phone that more or less same as yours
And this for some video - https://forum.xda-developers.com/showthread.php?t=2761985

I have the same issue. I have pressed power and vol dowm couple times, my battery is full but nothing happened. What to do????

renniefb said:
I have the same issue. I have pressed power and vol dowm couple times, my battery is full but nothing happened. What to do????
Click to expand...
Click to collapse
Same issue as who? The OP has an issue with the button combo making the phone reboot or flash between battery charge screen and TWRP. Plus, that post is from 2014, so their firmware most likely does not match what you have, even remotely. Another person who posted to this thread. has a dual SIM Chinese version. I doubt either accurately describes your situation.
Do yourself a favor, and don't post "I have the same issue" while giving zero details on your M8 version (CID, MID) whether it is modded (unlocked bootloader, custom recovery, root, s-off, etc.) as well as the current condition: is the phone powered off when you try the button combo, or stuck on a boot screen, etc.
Giving as many details about your device and situation makes it easier for us to help you.
The button combo power+ vol down will only boot to bootloader if the phone is powered down. And you may have to hold the buttons for a minute or more, depending on the current condition of the phone. If this doesn't work, of the phone is in another state (such as stock on boot screen with HTC logo) tell us of this, and we will advise you further.

volume down button doesnt work
hi,
Volume down button doesnt work so i cant access bootloader. (https://www.youtube.com/watch?v=ZomJvkphGms) also i tried to short two pins like this video. but no success.
Is there any alternative way to access to bootloader.
thanks in advance

turksailorman said:
hi,
Volume down button doesnt work so i cant access bootloader. (https://www.youtube.com/watch?v=ZomJvkphGms) also i tried to short two pins like this video. but no success.
Is there any alternative way to access to bootloader.
thanks in advance
Click to expand...
Click to collapse
Does your phone boot into Android OS, or not? If so, I believe there are some market apps you can install to boot to bootloader, that you can try. Or you can do adb reboot bootloader.

redpoint73 said:
Does your phone boot into Android OS, or not? If so, I believe there are some market apps you can install to boot to bootloader, that you can try. Or you can do adb reboot bootloader.
Click to expand...
Click to collapse
No stuck on HTC logo.

Panasonic DMC-CM1 Factory Reset

hello
i searched the whole internet but there are not much informations about this Phone so i thought i make a new Thread
about the panasonic DCM-CM1 Factory Reset.
please write here any informations and experience you have about the Panasonic DMC-CM1
i never saw someone on youtube google or any other side or anyone who can tell me how to do a Factory Reset with this phone
today i called 5 Panasonic service numbers but noone can help, i also called about 10 Phone Service points for repair no one can help.
i tryed so much with this phone and i finaly found that the CM1 have a Secret key combination to connect it with USB as a Android ADB Interface without having acces to the phone cause it is screen locked.
1 .Turn Phone off
2. press Camera + Volume-up + Power ( Hold )
3. while Holding connect USB. (Hold)
4 .the LED should go green for maybe 2 seconds release all bottons while the led is green before it turns off and then the LED must still green.
then windows found a Android ADB Interface
if im in android SDK Tools i the phone will be found in fastboot!
if i type Fastboot Devices
the other thing i know is how to start in Save mode.
but this is nothing to help with a lost pin.. it only starts the phone without apps that have been installed by the user.
maybe for deinstalling a app or a buggy app.. dont know..
start phone at the screen for the pin or at the home menu..press the power botton hold for 2-4 seconds or so it ask for Shut down Restart and so.. just press and hold Shut down. and then it ask you if you want to start in Save mode. then press yes.
2 weeks ago i wanted to make a Screen lock with a pin for more secure.. i cant remeber the pin anymore thats why i want to make a Factory reset i think im not the only one. so any information would be nice
if there is someone who made Factory Reset with this phone or was able to start in fast boot or anything.. please share the infos with us!
thank you.

HTC M8 0P6B100 stuck on this build is for development...

Hello guys, i have a big problem , after the phone drop down when i try to turn on or connect to the power supply i saw on the screen in red word : this build is for development purposes only do not distribute outside
When is connect with power supply the phone have a bootloop, always with this words.
Phone have stock firmware but i cannot enter on fastboot / recovery mode or other combination of button.
What can i do?

Benz83 said:
Hello guys, i have a big problem , after the phone drop down when i try to turn on or connect to the power supply i saw on the screen in red word : this build is for development purposes only do not distribute outside
When is connect with power supply the phone have a bootloop, always with this words.
Phone have stock firmware but i cannot enter on fastboot / recovery mode or other combination of button.
What can i do?
Click to expand...
Click to collapse
Holding ( power button + volume down ) while the device is off power didn't make any thing ?
This is curious if you didn't make any modifications
Try this and post what is happening
Any info about the device is useful ( except serial and imei numbers )

Well, i check yesterday with multimeter , battery is 0Volts, and the connector before the flat of battery arrived like 0,86v...seems there is something wrong.
However if try that combination of button not work.
I found this code on the box
P/n: 99HYK076-00
nmu 767406

Benz83 said:
Well, i check yesterday with multimeter , battery is 0Volts, and the connector before the flat of battery arrived like 0,86v...seems there is something wrong.
However if try that combination of button not work.
Click to expand...
Click to collapse
remove you serial number
the device boot but stuck at htc logo ? If yes try that
Boot the device until it stuck at any screen then
Hold power button + volume up for a few second until the screen goes gray then immediately sweep your finger to press and hold volume down while holding power button
This should take you to the bootloader
hope it will help