Develop Bugs

Bricked?

Sorry for the double post, I realized afterwards this was a better place for the question
I recently followed the unrevoked guide to root my phone and put on the clockworkmod custom recovery image (for slcd http://forum.xda-developers.com/showthread.php?t=748618). Everything appeared to go smooth, unrevoked said it was a success, been using it for a few hours now and all of a sudden it wont boot sits at the htc screen, I also can't boot into recovery mode (shows a black line at the top of the screen then powers down). Its a brand new telus desire. Anyone know where i go from here to trouble shoot this/reset the device.
last thing I did was copy over a froyo rom to the sd card and try to install it using clockworks rom tools from the sd card, however that process just rebooted my phone. So i assume it didnt do anything.
Is there a way to try to reflash the recovery image without being able to boot into android?

what do you get when u hold volume down and power button? do you not get hboot screen?
if you do then not bricked

I can get to the screen, but I cannot enter recovery, when I choose recover it vibrates, htc logo comes up then powers down. I cant boot into android , cant get to the recovery screen, so Im at a bit of loss what to do next.

rock_80 said:
I can get to the screen, but I cannot enter recovery, when I choose recover it vibrates, htc logo comes up then powers down. I cant boot into android , cant get to the recovery screen, so Im at a bit of loss what to do next.
Click to expand...
Click to collapse
you need to install recovery again then, i messed mine worse then yours and sorted using this guide
http://forum.xda-developers.com/showpost.php?p=6710081&postcount=2
you have to download that ISO and burn it on cd and boot the linux and follow the command as if it was the 1st time you are rooting, if step 2 does not work then skip it and see if it boots into recovery. i remember i had to play with it for a bit

I had something similar, Volume UP, then hit power? Select recovery, then wait 30 seconds, then update zip, then get it from there? Worth a try?

that wont work with the 0.83 bootloader will it ?

Anyone else have a solution?
I assume I may need to wait for a tiny linux version compatible with hboot 0.83? so that I can restore my recovery image? unless i can boot android
I cant connect in Win. because it wont boot..
How does fastboot work ? could I copy a slcd image over the microsd ( i dont have a card reader to test right now)card run fastboot, and have android boot long enough to sync windows and attempt to reapply the unrevoked recovery image?

[Q] EVO will not load into recovery after root?

Hi all. First let me begin by saying I'm NOT new to rooting and I have a pretty good knowledge of what I'm doing.
Here is my problem. I WAS rooted before, and used Rom Manager/Clockwork to preform Nandroid backups etc.
I recently received a replacement EVO (cracked housing) and wanted to root again, which I have, with SU permissions and S-OFF using the latest version of unrEVOked. (this is after the December update to 3.70 with hboot 2.10) No problem with rooting, however when I want to do a nandriod back up, thru Rom Manager, (or alternative methods) I get stuck on the white EVO boot screen. I CAN NOT boot into recovery? Weird right?
EDIT: When I try to enter recovery in any fashion, it hangs on the white EVO screen...forever until I do a battery pull.
EDIT: Sorry, I CAN enter bootloader, however once there, I attempt to enter "recovery" and it bounces me back to the menu. This happens both via ROM Manager and the traditional way of "POWER" button and "Vol Down".
EDIT (again): Okay..I used Amon RA to preform a nandroid back up,(which worked) and now I'm stuck in a bootloop! Ugh! Trying to restore my Nanadroid backup using RA..hopefully that works and I can revert back to Clockwork.
Jesus...
Any help would be much appreciated!
Thanks!

skbgiants said:
Hi all. First let me begin by saying I'm NOT new to rooting and I have a pretty good knowledge of what I'm doing.
Here is my problem. I WAS rooted before, and used Rom Manager/Clockwork to preform Nandroid backups etc.
I recently received a replacement EVO (cracked housing) and wanted to root again, which I have, with SU permissions and S-OFF using the latest version of unrEVOked. (this is after the December update to 3.70 with hboot 2.10) No problem with rooting, however when I want to do a nandriod back up, thru Rom Manager, (or alternative methods) I get stuck on the white EVO boot screen. I CAN NOT boot into recovery? Weird right?
EDIT: When I try to enter recovery in any fashion, it hangs on the white EVO screen...forever until I do a battery pull.
EDIT: Sorry, I CAN enter bootloader, however once there, I attempt to enter "recovery" and it bounces me back to the menu. This happens both via ROM Manager and the traditional way of "POWER" button and "Vol Down".
EDIT (again): Okay..I used Amon RA to preform a nandroid back up,(which worked) and now I'm stuck in a bootloop! Ugh! Trying to restore my Nanadroid backup using RA..hopefully that works and I can revert back to Clockwork.
Jesus...
Any help would be much appreciated!
Thanks!
Click to expand...
Click to collapse
I'm in the exact same boat as you...

UhQ said:
I'm in the exact same boat as you...
Click to expand...
Click to collapse
Let me know what you do to fix it. I'm just going to put the 3.7 RUU on sd card and restore to default? Here is the link. Hopefully this works.
http://goo-inside.me/evo/stock/RUU/

I have the exact same problem!!!! I cannot boot into recovery! It throws me back to the main hboot screen. It freezes when I try to do a recovery and I need to return this stupid phone because it keeps freezing and re-starting on it's own and I've tried flashing the oem rom many times already. I have "s-off" and Sprint will know I've rooted the phone ... please help!!

I just get stuck with the evo screen but like all of you i can not get to recovery... any ideas

Do you guys have working ROMs on your phones and just can't get into recovery? Or can you not boot up at all?
Sent from my HTC EVO 4G with Tapatalk

Looks like your recovery didn't flash. Put this file on the root of your sdcard, boot into the bootloader and select yes to update, the reboot. This installs CWM 3.0+.

I'm in a similar situation after initially using Unrevoked, and I've tried flashing AmonRa and Clockwork from a PC36IMG.zip. Neither has gotten me a recovery screen.
Beyond that I can't seem to get a ROM to boot more than once. I can install ROMs with varying degrees of success, but invariably a reboot leads to the phone simply hanging at the white HTC EVO 4G screen. Flashing a new ROM generally works. Once. But then I'm constantly afraid of my phone rebooting for any reason, and I know it'll mean that I have to wipe the bastard and start all over again.
Any suggestions on the recovery issue? Perhaps fixing that will fix my reboot problems.

RandomViolence said:
I'm in a similar situation after initially using Unrevoked, and I've tried flashing AmonRa and Clockwork from a PC36IMG.zip. Neither has gotten me a recovery screen.
Beyond that I can't seem to get a ROM to boot more than once. I can install ROMs with varying degrees of success, but invariably a reboot leads to the phone simply hanging at the white HTC EVO 4G screen. Flashing a new ROM generally works. Once. But then I'm constantly afraid of my phone rebooting for any reason, and I know it'll mean that I have to wipe the bastard and start all over again.
Any suggestions on the recovery issue? Perhaps fixing that will fix my reboot problems.
Click to expand...
Click to collapse
Try installing clean, wipe everything. With TB, backup the apps, ect. When you restore, restore only apps and data, not system settings.

Just to be sure I 'wipe everything' properly, which steps are you suggesting? Should I choose Clear Storage from the bootloader menu?

Just for clarification, I've tried to RUU several times and it has not fixed the issue.

I just used a modified HBOOT to allow me to erase my recovery, system, and userdata partitions via fastboot. After that, I flashed AmonRa 2.3 in Bootloader and it worked! I now have a working AmonRa recovery. I'm attempting to flash CM7 now, and I'll let you know if that works.
I can't take credit for thinking of this, I used someone else's guide, but I'll happily post the software and the steps if people are interested.

The fix was apparently temporary. The attempt to flash CM7 led to my Evo hanging at the white screen after rebooting.
The only way I've managed to boot into a ROM is pretty crazy... I flash the 3.70 RUU from a PC36IMG.zip version at bootloader, then I flash clockworkmod, then I flash SprintLover's ROM. If I flash in that sequence, I can get SprintLover's to work, but it will hang at the white evo 4g screen if I reboot. It's insane!
Anyone have any advice? This **** is bananas.

teh roxxorz said:
Looks like your recovery didn't flash. Put this file on the root of your sdcard, boot into the bootloader and select yes to update, the reboot. This installs CWM 3.0+.
Click to expand...
Click to collapse
What I have done so far:
(the good):
#1 I used the "clear storage" from hboot and it works.
#2 I re-flashed "RUU_SuperSonic_S_Sprint_WWE_3.70.651.1_Radio_2.15.00.11.19_NV_1.90_release_161482_signed" from my PC via USB and this works too! It gets the phone back to factory settings wiping out everything and booting up normally.
(the bad):
#1 The phone still freezes and turns off sporadicly.
#2 I have lost root BUT the HBOOT screen still shows security is off (S-OFF) so still I cannot return the phone to Sprint!
(the ugly):
#1 From the "HBOOT" screen I choose "FASTBOOT" which takes me to the "FASTBOOT" menu, from there I choose "BOOTLOADER" and it throws me back to the "FASTBOOT" menu creating an endless loop.
#2 From the "HBOOT" menu I choose "RECOVERY" and it re-starts but it than freezes at the white HTC EVO 4G screen. I then have to take the battery out to re-boot the phone. Again another loop!
Any Ideas or any help would be GREATLY appreciated!

dns213 said:
What I have done so far:
(the good):
#1 I used the "clear storage" from hboot and it works.
#2 I re-flashed "RUU_SuperSonic_S_Sprint_WWE_3.70.651.1_Radio_2.15.00.11.19_NV_1.90_release_161482_signed" from my PC via USB and this works too! It gets the phone back to factory settings wiping out everything and booting up normally.
(the bad):
#1 The phone still freezes and turns off sporadicly.
#2 I have lost root BUT the HBOOT screen still shows security is off (S-OFF) so still I cannot return the phone to Sprint!
(the ugly):
#1 From the "HBOOT" screen I choose "FASTBOOT" which takes me to the "FASTBOOT" menu, from there I choose "BOOTLOADER" and it throws me back to the "FASTBOOT" menu creating an endless loop.
#2 From the "HBOOT" menu I choose "RECOVERY" and it re-starts but it than freezes at the white HTC EVO 4G screen. I then have to take the battery out to re-boot the phone. Again another loop!
Any Ideas or any help would be GREATLY appreciated!
Click to expand...
Click to collapse
http://unrevoked.com/rootwiki/doku.php/public/forever Jump down to Q&A and download the S-ON tool. You need to load up a recovery image, CWM or amon_ra and flash that ^ then re-run the 3.70 RUU and you should be set.

[Q] bricked htc evo plzzzz help

hi if someone can help me with this it would be great i have a fully rooted htc evo i had myn rom flashed i did the back up and wipe to flash new rom and all of a sudden my phone shuts off and i get 5 vibrates while screen is black and the green light on the top of my evo is flashing i tryed to get into recovery and when i hit recovery it does the same thing screen turns black and green light flashes. when i turn my phone on normally it boots up to the rom i have installed but then after about 5min is shuts down and does the same thing anyone plz i really hope i didnt brick my beautiful evo.

You say the phone phone boots into the new rom and is fine for 5 minutes before this happens, so it's not bricked. if it was bricked, it wouldn't do anything at all.
Boot the phone normally, go get ROM Manager from the market and use it to reflash the recovery onto your phone. Then try booting into recovery again and see if you can restore your NAND or wipe and reflash the rom.

yea i had warm and like it comes up and then within 5 min the screen shuts down and vibrates 5 times ive tryed dl rom man from the market place and then an error comes up and then phone shuts down

yea i cant even dl rom manager it keeps telling me a network error has occured im lost right now

Evo S3vn said:
yea i cant even dl rom manager it keeps telling me a network error has occured im lost right now
Click to expand...
Click to collapse
Have you singed into Google after flashing the new rom? Try doing that and also try accessing the market while you're connected on WiFi instead of 3G.

Try this...
Im assuming you can get into recovery. Clockwork or amen Ra. Wipe EVERYTHING. Then on your stock ROM sign into google and try to DL Rom manager off of the market. Once its downloaded flash a new ROM or just go to your backed up ROM....
Dont panic. Should be simple enough

yes once you get into recovery everything else should be a breeze

what if i reboot into recovery and clear storage will that work i cant dl rom manager at all and if i hit recovery it shuts the phone off and vibrates 5 times

Evo S3vn said:
what if i reboot into recovery and clear storage will that work i cant dl rom manager at all and if i hit recovery it shuts the phone off and vibrates 5 times
Click to expand...
Click to collapse
I Think you should do this, and it saddens me it wasn't mentioned yet.
Go to the dev section of this forum and find the thread for Amon-Ra 2.3 and open that threat and download the PC36IMG.ZIP file and place it on the root of your SD card, if need be you may need a microsd card reader for your coomputer.
next, boot the phone up holding down power and volume up for fastboot. When it asks if you want to flash the PC36IMG.ZIP recovery image, hit volume up to accept.
now try and boot into recovery again and see what happens.
btw, since I am nice, here is that thread you need.
http://forum.xda-developers.com/showthread.php?t=705026

i tryed to install what you told me and it did the same thing again it never came up asking to anything so i hit recovery and it shut my phone off again im soo lost i might just go by another evo

Evo S3vn said:
i tryed to install what you told me and it did the same thing again it never came up asking to anything so i hit recovery and it shut my phone off again im soo lost i might just go by another evo
Click to expand...
Click to collapse
If it didn't ask you if you wanted to update, then the file is named incorrectly or it is not on the root of your SD card. Make sure the PC36IMG file is not inside an folders. Also, make sure you did not add .zip to the end because if you did, the file is now named PC36IMG.zip.zip and your phone won't recognize it.
You can also name the file "update.zip" and then look for the option in recovery to flash update.zip and do it that way. Again, file must be in the root of your SD card and not in any folders.

sry about all this bro im kinda new with this and im learning and ty soo much for helping me out if i had a damn cell phone id just have you call me hahaha and walk me through it your deff getting the ty button if you can help me get my evo back ill donate like 20 bucks lol

should i unzip the files in the zip folder or put the whole zipped folder on the root of my sd card

just but the zip on your sd card do not extract it...

curious if this worked for him...

no i cant seem to get this to work i did everything that was told of me to do and still nothing when i hold down the volume button and power button to boot into recovery and i hit recovery it goes to the htc white screen and then all of a sudden my phones screen turns black and vibrates 5 times and in the top left hand corner the green light will flash and keep flashing and in order to restart my phone i have to pull the battery i cant just power it down

Having a similar problem too, keeps doing a boot loop, in the bootloader (clockworkmod) i cant get into recovery, tried many different pc36img.zip files to no avail. Mine gets to the 'htc EVO 4g' screen, holds a few seconds, then reboots, shows the white screen and reboots again, continues until i pull battery.
Trying more and more img.zips, hopefully i can find the right one to atleast get back to stock.

mhport2 said:
Having a similar problem too, keeps doing a boot loop, in the bootloader (clockworkmod) i cant get into recovery, tried many different pc36img.zip files to no avail. Mine gets to the 'htc EVO 4g' screen, holds a few seconds, then reboots, shows the white screen and reboots again, continues until i pull battery.
Trying more and more img.zips, hopefully i can find the right one to atleast get back to stock.
Click to expand...
Click to collapse
Just download the RUU. That will get you back to stock, but then you would need to re-root.

i tryed that but it came up error that my usb cord was not connected to my pc make sure its connected to phone and pc

Without using adb, I think running the ruu and starting over is your best bet.

[Q] Phone Will Not Boot Past Splash Screen

I tried to flash the latest (at that time) Synergy Rom on Sunday. I had been trying out Sense 3.0 Roms since being on Cyanogen for 3 months and low in behold after flashing and rebooting, the phone hung on the splash screen, wouldn't even get to the boot animation. I pulled the battery out to reboot and kept doing the same things. So then i just figured I go through bootloader to get to recovery. When I hit recovery, the phone hung on the splash screen and thus I was forced to report my phone lost because I use it for work and was able to get a new one the next day (had to pull out my old bb 8530). The phone charges, but it will not do anything when powering on, or hitting recovery but go to splash. Once again when i try to go into recovery, it won't get there.
Any Help Please.

dels28 said:
I tried to flash the latest (at that time) Synergy Rom on Sunday. I had been trying out Sense 3.0 Roms since being on Cyanogen for 3 months and low in behold after flashing and rebooting, the phone hung on the splash screen, wouldn't even get to the boot animation. I pulled the battery out to reboot and kept doing the same things. So then i just figured I go through bootloader to get to recovery. When I hit recovery, the phone hung on the splash screen and thus I was forced to report my phone lost because I use it for work and was able to get a new one the next day (had to pull out my old bb 8530). The phone charges, but it will not do anything when powering on, or hitting recovery but go to splash. Once again when i try to go into recovery, it won't get there.
Any Help Please.
Click to expand...
Click to collapse
You need to reflash your recovery. Is it just hanging at the splash screen, or is it rebooting at the splash screen?
Download this PC36IMG I attatched (it's Amon RA recovery v2.3). Place the file on the main directory of your sd card (you'll probably need to take the SD card and use a card reader to get the file on the card....or put the card in another phone with an sd slot if you have access to one...just get the PC36IMG.zip file on your card). Once it's on the card and card's back in the phone, boot to your bootloader. It should scan and find the PC36IMG then ask you to update...select vol up to say yes. Should finish in 10-15 seconds. Then when it asks you to reboot, say no. Now from the bootloader menu, choose recovery. Do you successfully boot to recovery now, hopefully?

Ok, I got that, I put cyanogens latest release candidate from 5/5 on the card, I have Ra's recovery up, i guess i jumped ahead and the install aborted, tips please.

dels28 said:
Ok, I got that, I put cyanogens latest release candidate from 5/5 on the card, I have Ra's recovery up, i guess i jumped ahead and the install aborted, tips please.
Click to expand...
Click to collapse
So what part aborted? When you were flashing the rom? Just to clarify, you did successfully get the recovery flashed, right? Now it's the rom you're having trouble flashing?
If so, I'd be sure that you don't have a corrupted download. Check the md5 checksum, or simply try redownloading it and trying again. Good luck.

It starts to install the ROM, then it all of a sudden aborts after getting 50-75 percent complete. I'm trying RC 7.3 now, wala, it worked, well i have an extra evo now i need to figure out what to do with it. BIG THANKS.

dels28 said:
It starts to install the ROM, then it all of a sudden aborts after getting 50-75 percent complete. I'm trying RC 7.3 now, wala, it worked, well i have an extra evo now i need to figure out what to do with it. BIG THANKS.
Click to expand...
Click to collapse
You're welcome, glad you got it squared away.
As far as having two Evo's...just be careful. If I'm not mistaken, when you report a phone lost or stolen to Sprint, they will make the ESN bad. I'd check into that, to make sure that one them doesn't have a bad ESN. I didn't even catch that part of your OP that you had already gotten a new one, lol.

So I guess that will make the phone useless if I give it to my father in-law.

turn it back in n say u found it...in other words the right thing

after doing amon ra3.0.7 nandriod
sorry if question is silly. but last night i flash from cwm to amon ra 3.0.7 everything went good, rebooted phone fine. i rebooted into recovery did a nandriod back evrything fine. i did a reboit to recovery wipe everything except sd card and flash a custom rom and rebooted fine. i went back into revovery did a nandriod backup went fine. i went to reboot my phone and its stuck at splash screen. I followed Hip Kat instruction to the letter. di i miss something
any help would be greatly

I've been running a Sense ROM the last few days and wit the 3 different Sense Kernels I've flashed, I got stuck on the ROM's Splash Screen, had to do a battery pull and reboot and it was fine.
That could be your problem right there.

HipKat said:
I've been running a Sense ROM the last few days and wit the 3 different Sense Kernels I've flashed, I got stuck on the ROM's Splash Screen, had to do a battery pull and reboot and it was fine.
That could be your problem right there.
Click to expand...
Click to collapse
it was me i jump the gun after i flashed custom rom. i di all kinds of mods then i tried to nandriod. md5 check sum mismatch, so i just wiped everthing except sd card, reflashed custom rom its all good now. By the way thanks for your input about cwm being junk you were right amon ra is awesome, no more cwm for

[Q] Help! Unlocked bootloader, installed CWM, now phone won't boot

I used the GN Toolkit V2.2 to unlock the bootloader, after installing the adb drivers via PDANet. I flashed Clockwork Mod on as well, and was going to install the Android Revolution ROM. I thought I had already copied the zip file to the internal storage, but when I tried to flash it from inside CWM, it said no files were found. (May have copied it before wiping device, I can't remember). So I restarted so I could copy the zip file again and then flash it. However when starting, it seemed to be stuck on the startup screen, with all the flashing blocks of color fading in and out. After a while stuck on there I couldn't do anything so I did a battery pull to restart. At this point, I can start normally or into recovery mode. If I try to start normally, (or go into recovery mode and choose restart from the submenu), it shows the black screen with the white Google logo, and the unlocked icon, stalls for a few seconds, then does a short vibrate and reloads the logo again. It will keep doing this and not go any further. I tried doing an additional data wipe from recovery mode but that didn't help, and I tried to do USB mount from recovery mode, hoping to copy the Revolution zip file and flash it over, but it couldn't mount. I'm starting to panic a little bit, did I brick or otherwise mess my phone up? What can I do? Any help is REALLY appreciated.
Thanks so much and I hope this is the right forum.

I dont have the answer but I wanted to post to calm you. This happens a lot.....multiple times to me on my android devices. You live and learn next time, do a backup in cwm before wiping data and flashing new stuff
Im sure someone will post shortly to solve your problem

Well ok that is reassuring thanks. I downloaded the Google factory ROM from the code.google.com and was able to flash that on my phone with GN Toolkit. It is trying to boot right now, still on the colorful screen. I think maybe I didn't give it enough time last time around? At least I'm past the black and white logo screen. So I'll let it sit for a few minutes and see what happens.
Edit: I let it run for a couple minutes, and it blacked the screen for a sec, showed the white Google logo again, and then went into the colorful startup screen again. I think it's working now so that's a relief.
If someone finds this thread in the future with a similar issue: Don't battery pull during start up and be patient if you don't want to freak yourself out haha. But as spitefulcheerio said, it will be okay so just don't panic. Thanks again.

Make sure you do a Factory Reset in STOCK recovery after unlocking the bootloader. THEN install CWM. learned that one the hard way. skipped a step after doing the oem unlock.

Yes, first time will take awhile on the boot animation.
And, as long as you see the google logo, you are ok, even if it freezes on that. They designed this phone to be easy
Sent from my Galaxy Nexus Bugless Beast 4.0.3 lte +franco#6

Guess all I needed was a psychological confidence boost, thanks for everyone for being supportive I thought I just threw a few hundred bucks away. But I got Revolution installed, phone and rooted and runs like a dream. Thanks all around!

mynameismolotov said:
I used the GN Toolkit V2.2 to unlock the bootloader, after installing the adb drivers via PDANet. I flashed Clockwork Mod on as well, and was going to install the Android Revolution ROM. I thought I had already copied the zip file to the internal storage, but when I tried to flash it from inside CWM, it said no files were found. (May have copied it before wiping device, I can't remember). So I restarted so I could copy the zip file again and then flash it. However when starting, it seemed to be stuck on the startup screen, with all the flashing blocks of color fading in and out. After a while stuck on there I couldn't do anything so I did a battery pull to restart. At this point, I can start normally or into recovery mode. If I try to start normally, (or go into recovery mode and choose restart from the submenu), it shows the black screen with the white Google logo, and the unlocked icon, stalls for a few seconds, then does a short vibrate and reloads the logo again. It will keep doing this and not go any further. I tried doing an additional data wipe from recovery mode but that didn't help, and I tried to do USB mount from recovery mode, hoping to copy the Revolution zip file and flash it over, but it couldn't mount. I'm starting to panic a little bit, did I brick or otherwise mess my phone up? What can I do? Any help is REALLY appreciated.
Thanks so much and I hope this is the right forum.
Click to expand...
Click to collapse
cancerouspete said:
Yes, first time will take awhile on the boot animation.
And, as long as you see the google logo, you are ok, even if it freezes on that. They designed this phone to be easy
Sent from my Galaxy Nexus Bugless Beast 4.0.3 lte +franco#6
Click to expand...
Click to collapse
mynameismolotov said:
Guess all I needed was a psychological confidence boost, thanks for everyone for being supportive I thought I just threw a few hundred bucks away. But I got Revolution installed, phone and rooted and runs like a dream. Thanks all around!
Click to expand...
Click to collapse
To provide some technical details on why it takes longer the first boot and appears to "hang" at boot animation ...
During the boot animation, the /data/dalvik-cache directory is built up for each application loaded on the device. This occurs during the very first boot. If the /data partition is wiped, the dalvik-cache directory is also wiped and will have to be rebuilt on the first boot. All subsequent boots will be quicker as this directory has already been populated.
Whenever loading a new ROM or performing the fastboot oem unlock command, the /data partition is generally wiped which takes with it dalvik-cache and results in the delayed initial boot time while the dalvik-cache directory is re-populated.
Hope that makes sense and fills in a few blanks on the why Android appears to "hang" at the boot animation during first boot after the /data partition is erased or the /data/dalvik-cache directory is erased.