[How To] Get to Android System Recovery (vol up + power) - EVO 4G Android Development

I dunno if this has been mentioned before.....
Boot your phone while holding the volume down button.
When on the hboot screen choose recovery.
When you get to the screen with the phone and exclamation, press and hold the volume up and power buttons for about a second and the blue menu will pop up.

Haha just posted this in the nand unlock thread a min ago doesn't appear to be functional those says something about error can't cache recovery

bcnice20 said:
Haha just posted this in the nand unlock thread a min ago doesn't appear to be functional those says something about error can't cache recovery
Click to expand...
Click to collapse
confirmed, this method works on stock EVO with OTA patch.
the blue text loads at the top of the screen, the stock HTC UI and it prints yellow text at the bottom, E:Can't open /cache/recovery/command.
This looks pretty standard and to be expected.

Related

better way to add custom roms for your nexus one

okay so i found backdoor to flash the ROM on your nexus one phone "that probably wont void your warranty[i haven't tried it yet]"
turn off your device>
when fully powered off
first press and hold the trackball then holding down the power button
now you should see a white screen with droids on skateboards
now using the volume up/down buttons scroll the blue stripe to the spot that says "BOOTLOADER" and press the power button
next (using power up/down buttons) scroll to "RECOVERY" (it will reboot .....be paitiant)
when you see the android (robot) with the triangle warning sign
simultaneously press the power button and both volume up and down buttons
now you should see the "android system recovery" (with blue text)
you should see the following
-reboot system now
-apply sdcard:update.zip
-wipe data/factory reset
-wipe cache partition(this is good if your phone wont connect to data or is unresponsive)
-apply sdcard:update.zip is the one you want to use
but make sure to rename the new custom ROM file update.zip
please tell me if this truly works without giving you the "unlock bootloader screen that says 'unlocking the bootloader will void your warranty"
Most interested in this, don't have mine yet though.....
sparkey001 said:
okay so i found backdoor to flash the ROM on your nexus one phone "that probably wont void your warranty[i haven't tried it yet]"
turn off your device>
when fully powered off
first press and hold the trackball then holding down the power button
now you should see a white screen with droids on skateboards
now using the volume up/down buttons scroll the blue stripe to the spot that says "BOOTLOADER" and press the power button
next (using power up/down buttons) scroll to "RECOVERY" (it will reboot .....be paitiant)
when you see the android (robot) with the triangle warning sign
simultaneously press the power button and both volume up and down buttons
now you should see the "android system recovery" (with blue text)
you should see the following
-reboot system now
-apply sdcard:update.zip
-wipe data/factory reset
-wipe cache partition(this is good if your phone wont connect to data or is unresponsive)
-apply sdcard:update.zip is the one you want to use
but make sure to rename the new custom ROM file update.zip
please tell me if this truly works without giving you the "unlock bootloader screen that says 'unlocking the bootloader will void your warranty"
Click to expand...
Click to collapse
I doubt this will work since it never worked with older android phones like the g1/mt3g.
There is no way you can void your warranty. If something goes wrong just flash the stock nexus one rom without root access and lock the boot loader. They will never know.
okay so i found backdoor to flash the ROM on your nexus one phone "that probably wont void your warranty[i haven't tried it yet]"
turn off your d
Click to expand...
Click to collapse
I doubt this will work since it never worked with older android phones like the g1/mt3g.
There is no way you can void your warranty. If something goes wrong just flash the stock nexus one rom without root access and lock the boot loader. They will never know.
Click to expand...
Click to collapse
So...there is away to put the N1 back to stock? At the risk of being flamed (Ive searched for this info for a week, off and on) where is the info on how to?
Sent from my Nexus One using the XDA mobile application powered by Tapatalk
davidusr said:
So...there is away to put the N1 back to stock? At the risk of being flamed (Ive searched for this info for a week, off and on) where is the info on how to?
Sent from my Nexus One using the XDA mobile application powered by Tapatalk
Click to expand...
Click to collapse
There is a stock Nexus One ROM somewhere in the N1 section. Do a complete wipe and flash that. Then go into fastboot, flash the stock N1 recovery (somewhere in the N1 section) and then lock the bootloader. I think the code is something like fastboot oem lock bootloader.
what a great idea...
except the bootloader will not accept the lock command....
as to my knowledge, there is no way to go back, when you unlocked the bootloader, it stays that way...
but please correct me if I am wrong..

Preparing to use a custom recovery and write_raw_image/flash_image

In preparing for the official EVO release, where all us regular ppl will finally get the phone, have a few questions which there might be answers for or there might not yet be.
I know toast posted he is running a custom recovery.
What custom recoveries will work on the EVO? Will all the currently available recoveries need to be updated/modified to run on the EVO?
In creating an update.zip to flash partitions (load a new boot.img) through the custom recovery, is there a flash_image binary (samsung moment style) or are there commands, with partition information hard coded into the recovery, like write_raw_image ? If both exist, is there a preferred method?
I'm curious how we even get to a stock recovery on this phone...any idea?
-------------------------------------
Sent via the XDA Tapatalk App
spurnout said:
I'm curious how we even get to a stock recovery on this phone...any idea?
Click to expand...
Click to collapse
Turn off (completely). Hold volume down while powering on, and keep holding it until the bootloader screen appears. Use volume keys to navigate up/down in the list, and press power button to select "Recovery". It'll take you to a black screen with a red icon in the middle, and shows no menu -- but if you press all three buttons (vol down+vol up+power), it'll show a recovery menu that we're all used to, with blue letters.
This will only work to apply a signed HTC update.
maejrep said:
Turn off (completely). Hold volume down while powering on, and keep holding it until the bootloader screen appears. Use volume keys to navigate up/down in the list, and press power button to select "Recovery". It'll take you to a black screen with a red icon in the middle, and shows no menu -- but if you press all three buttons (vol down+vol up+power), it'll show a recovery menu that we're all used to, with blue letters.
This will only work to apply a signed HTC update.
Click to expand...
Click to collapse
Awesome, thank you very much.

[Q] HELP!! Samsung Nexus S Crashed, Cant do anything

Hi
I have a Samsung Nexus S for past 5 months. I recently upgraded to the ICS. Last week, I was listening songs on my phone and all of a sudden out of nowhere the phone re-started.
After couple of minutes, saw a message on screen saying “encryption unsuccessful, you have lost all your data. This phone will now need to rebooted”.
Underneath this message, there was only 1 option of REBOOT NOW. I had to press the button since I had no other option.
After this the phone restarted but never went past the start up animation screen. After couple of days, I gave it another shot and after going past the welcome screen, it gave me the option to register the phone again. But as soon as that screen comes up, I get all these small messages saying, email has stopped, music has stopped, android process has stopped, calendar has stopped................ at this point the phone virtually hangs itself and I can’t do anything.
Can someone please advise what is wrong with my phone and how can I fix it?
Any help would be very much appreciated.
Try this, power the phone off, now press and hold the volume up & power botton at the same time, a menu should appear, now use the volume up/down buttons till "RECOVERY" is highlighted green, now press the power button, the phone will now reboot and in to recovery and show an android on the screen, at this point you need to press and hold the power button then press volume up briefly, a menu should appear, use the volume up/down buttons to highlight "wipe data/factory reset" and press the power button, now use the volume up/down buttons to highlight "Yes -- delete all user data" once this is done select "reboot system now", this process will wipe the phone and put it back to factory settings, it won't delete usb storage though so you may need erase usb storage once you're up and running again.
d.chatten said:
Try this, power the phone off, now press and hold the volume up & power botton at the same time, a menu should appear, now use the volume up/down buttons till "RECOVERY" is highlighted green, now press the power button, the phone will now reboot and in to recovery and show an android on the screen, at this point you need to press and hold the power button then press volume up briefly, a menu should appear, use the volume up/down buttons to highlight "wipe data/factory reset" and press the power button, now use the volume up/down buttons to highlight "Yes -- delete all user data" once this is done select "reboot system now", this process will wipe the phone and put it back to factory settings, it won't delete usb storage though so you may need erase usb storage once you're up and running again.
Click to expand...
Click to collapse
I would wipe cache while you're in there too.
Sent from my Nexus S using xda premium
i tried doing that. i cant get into recovery mode, when I press volume \up and power i get into that screen where it displays all the options such as recovery, bootloader etc etc. I select recovery (I dont see a android exclamation sign instead for a split second I see android and a triangle) and press volume down/up + power button, nothing happens. after some time it reboots and hangs itself at the animation screen..........any suggestions? your help is much appreciated.
puriaditya1234 said:
i tried doing that. i cant get into recovery mode, when I press volume \up and power i get into that screen where it displays all the options such as recovery, bootloader etc etc. I select recovery (I dont see a android exclamation sign instead for a split second I see android and a triangle) and press volume down/up + power button, nothing happens. after some time it reboots and hangs itself at the animation screen..........any suggestions? your help is much appreciated.
Click to expand...
Click to collapse
I think that you have to push clockworkmod recovery image like when you root your device.
Sent from my Nexus S using Tapatalk
is there any 'how to' guide to do that?
puriaditya1234 said:
is there any 'how to' guide to do that?
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=1007782
Check this thread.
Sent from my Nexus S using Tapatalk
yeah, try using clockwork recovery.
that's much more usfeul than the stock one
i tried doing clockwork recovery, I cant unlock the bootloader, i did all the steps ie installed android drivers, went to command prompt, typed the command, I can see the option of unlocking bootloader on android but when I select yes, it still says locked. I guess I will have to give up on this phone.
puriaditya1234 said:
i tried doing clockwork recovery, I cant unlock the bootloader, i did all the steps ie installed android drivers, went to command prompt, typed the command, I can see the option of unlocking bootloader on android but when I select yes, it still says locked. I guess I will have to give up on this phone.
Click to expand...
Click to collapse
Try using one click root v6 by shabbypenguin. That will work for you. Its what I used and its so easy. Just look for it here on xda
Sent from my Nexus S using xda premium

Cannot boot into recovery!

Hey guys! I just got a One X from AT&T bought on eBay, although I live in Europe.
I managed to unlock the bootloader by changing the CID to 1111111 etc. (how many 1's?) and it worked fine.
I then ran installed ClockworkMod Touch Recovery for the HTC One X through terminal and it was a success.
I rebooted by holding down the power and volume down, and attempted to boot into recovery. I got a white screen with the HTC logo, and red text underneath saying something like "do not use this without HTCs permission" or something of the sort. The phone then turned off.
NOW I'm trying to boot again into the bootloader (I think that's what it's called, but by turning it off and holding the volume down and power key) and it just doesn't work. I've tried a million times, with different variations of holding down the keys. What happens is the light on the touch keys at the bottom flashes a bunch of times, then it boots normally. Everything works on the phone otherwise.
I tried to do it via fastboot/terminal by issuing the command ./fastboot-mac reboot-bootloader but it just says "waiting for device..." even though it's connected.
Anyone had this problem and found a solution?
Recovery
Clockwork recovery is not supported on the evita. Download goo manager and you should be able TWRP from that. And then you can reboot into TWRP.
I think you flashed CWM for the international (Tegra3 quad core) One X. Install TWRP as previous poster recommended.
There is no version of CWM Touch Recovery that is supported for the AT&T One X. You flashed the international version. Fortunately, you can flash TWRP right over it inside Goo Manager.
Be thankful you didn't flash it inside ROM Manager or you could have bricked your phone. I've seen people do it in the past.
ansedve season
Thanks guys, and glad I didn't brick the phone!
I installed Goo Manager and installed OpenRecovery Script, and managed to attempt to go into recovery, but again got the white HTC screen and something about "development purposes only" in red text.
I think I'm really lost on this one, any help would be great, like a link to a tutorial?
in fastboot run this command "fastboot erase cache", then boot into recovery.
DvineLord said:
in fastboot run this command "fastboot erase cache", then boot into recovery.
Click to expand...
Click to collapse
Don't be too concerned with the blah blah in red writing about development version etc. on the boot screen - you get that boot screen when you unlock the bootloader.
mollysue said:
Thanks guys, and glad I didn't brick the phone!
I installed Goo Manager and installed OpenRecovery Script, and managed to attempt to go into recovery, but again got the white HTC screen and something about "development purposes only" in red text.
I think I'm really lost on this one, any help would be great, like a link to a tutorial?
Click to expand...
Click to collapse
What did you do in recovery? Did you flash anything? Does the phone not boot up now?
Thanks guys for all your help. I guess know I technically know what to do to fix things, thanks to you. The only problem that after probably over 100 failed attempts I cannot boot into recovery. I tried all variations of holding the power and volume down button while restarting, rebooting, turning on/off or up/down sideways but it just boots normally every time.
This means I can't use fastboot etc. I guess unlocking the bootloader and voiding the warranty was for nothing
If you know another way to reboot into bootloader other than the hardware buttons method let me know!
Believe it or not, I think you are just performing the button presses incorrectly, if you can't access the bootloader. Bootloader is probably still intact, otherwise the phone would not be working at all.
1) In Settings>Power, make sure "fast boot" is not checked.
2) Then power the phone off fully, but holding the power button until the power menu comes up, and select "Power off". Wait a minute for the phone to power off completely.
3) Hold down the volume down rocker. DO NOT release it until I tell you to later.
4) Press the power button for 3 seconds, then release. DO NOT release the volume down rocker.
5) Once the white bootloader screen shows up, release the volume down rocker.
Alternately, you can do this:
a) With the phone powered on, hold the power button until the capacitive buttons flash (about 5 seconds).
b) The moment the screen goes black, hold down the volume down rocker, (again, DO NOT release it until the bootloader screen comes up) but release the power button.
The timing for this method is a little trickier, if you press the volume down rocker too late, it will boot normally (or safe mode), and too soon, and it just reduces the ringer volume and the phone stays on. But as long as you press and hold volume down the moment the screen goes black, it will work.
---------- Post added at 10:13 AM ---------- Previous post was at 10:11 AM ----------
But also, I would still not recommend trying to boot into recovery until you have installed the TWRP recovery as mentioned previously on this thread, if you have not done so already. There is no CWM Touch Recovery for this phone, so I'm pretty certain you installed in improper recovery on the phone, and recovery will not function at all.
Alternatively, you can go into Goo Manager and select the "Reboot Recovery" option, which should get you into TWRP
Or from command prompt "adb reboot bootloader" so long as you open your prompt from your adb application folder.
Or alternatively skip the middle man: "adb reboot recovery"
I really think your problem lies with your button pressing -- follow instructions on the previous post and you should be home free.
Well I actually eventually managed it! I think the volume button was a bit stuck because it still takes a few tries to boot into bootloader, but eventually I managed it and am in the TWRP menu right now!
I did a little victory dance when it happened. Thanks again!

Clear System Cache (Unrooted, Unmodded Stock ROM)?

I just updated my A9 and I want to clear the system cache for a "clean flash." However, when I turn the device off and hold down the power button + volume down button, it brings me to "download mode." From there, I have to boot to the bootloader and then from there I can select the option to boot to recovery mode. For some reason, when I do this, it just boots to a screen with an icon of a phone and a red 'alert' triangle, sits there like that for a bit, then reboots like normal. Why is this? My phone is unlocked, on a completely stock HTC Sense ROM (well, with Action Launcher and Google Keyboard, but that shouldn't matter), no modifications or bootloader shenanigans whatsoever. What's the deal?
JayWulf said:
I just updated my A9 and I want to clear the system cache for a "clean flash." However, when I turn the device off and hold down the power button + volume down button, it brings me to "download mode." From there, I have to boot to the bootloader and then from there I can select the option to boot to recovery mode. For some reason, when I do this, it just boots to a screen with an icon of a phone and a red 'alert' triangle, sits there like that for a bit, then reboots like normal. Why is this? My phone is unlocked, on a completely stock HTC Sense ROM (well, with Action Launcher and Google Keyboard, but that shouldn't matter), no modifications or bootloader shenanigans whatsoever. What's the deal?
Click to expand...
Click to collapse
I had the same problem to get into the recovery menu , while you are in the red "alert" triangle screen try this..
1. Press and hold the power button
2. Just tap the volume up button only "ONCE"..
The recovery menu will show up..
Hope it helps...
This worked perfectly, thanks!!

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