yashsingh1/xdaforums huggingface dataset:
[EVO 4G Android Development] fldash:
Is there a command I can run to see if I have full fastboot or the handicapped on of Unrevoked? A command that doesn't do anything too drastic... ;)
[EVO 4G Android Development] jrmithdobbs:
If you boot the phone with power+voldown and it says hboot version .79 you have non-engineering.
[EVO 4G Android Development] freeza:
fastboot oem wimaxrmac :-p
[EVO 4G Android Development] Noxious Ninja:
Just flashed this, worked fine. Thanks.

If I want to make recovery-flashable versions of .79 or .93, can I just switch out the hboot_xxx.img file in the embedded hboot.zip? Do I need to worry about the contents of android-info.txt?
[EVO 4G Android Development] freeza:
Yes, and nope!
[EVO 4G Android Development] Noxious Ninja:
Hmm... I used 0.76 to back up my Wimax partitions in case anything goes wrong and I lose the encryption keys. Can never be too safe.

I then tried flashing 0.93 via recovery, and my phone refused to boot past the bootloader (or I couldn't see how to do so, anyway - it just kept booting into the fastboot menu). My heart nearly skipped a beat. :D But I was able to get into recovery and re-flash ENG 0.76, and it's good again.
[EVO 4G Android Development] freeza:
Same thing happened to me. I had to restore a nanDroid backup and recovery when changing hboot
[EVO 4G Android Development] bigbiff:
Is there a good reason to use the newer hboots then engineering hboot?
[EVO 4G Android Development] crimeslunk:
Quick question from a been here. So I've flashed over to baked snack by now can I just flash one of the 2 files from the 1st page(which one btw) over my baked snack through records recovery? This will just change something to eng bootloader? Will I still be able to flash back and forth from all the other rims with this?
[EVO 4G Android Development] Bizdady:
sweet ! thanks finally got CM6 after unrooting Stock 2.2 Evo with unrevoked method after installing eng bootloader.
[EVO 4G Android Development] HeNaFi:
I had unrevoked and flash this to install CM6 but after i did it my phone wont boot normally it takes me to the hboot (bootloader) every time, even after I removed the battery and SD card. I even went to recovery and boot from there same issue.

This is my hboot info:

Supersonic EVT2-3 ENG S-OFF

HBOOT-0.76.2000 (PC3610000)

MICROP-041F

TOUCH PANEL-ATMLC03_16AC

RADIO-2.15.00.07.28

MAR 30 2010 ....

HELP
[EVO 4G Android Development] manooti:
same here. keeps going into hboot so i repeated the steps for unrooting to get it working :(

lost this eng boot
[EVO 4G Android Development] Tiffany84:
Can somebody tell me why I can't restore my back up in recovery after I flashed this? Every time I try to it says md5 sum mismatch. Can someone please help me?
[EVO 4G Android Development] Tiffany84:
Can someone help me?
[EVO 4G Android Development] freeza:
What recovery are you using?
[EVO 4G Android Development] HeNaFi:
please, I need help. my evo keeps rebooting into hboot. I cant use my phone. im able to go into recovery using ClockworkMod v2.3.0.1

Can someone tell me how to undo this. when i try to restore using nandroid it gives this: Error while flashing boot image!
[EVO 4G Android Development] flashmasta:
Same thing here, every boot goes straight to HBOOT and Nandroid can't install recoveries...is it bricked? :(
[EVO 4G Android Development] EtherealRemnant:
Shouldn't be bricked. Attach the usb cable to the phone and go to bootloader. Flash stock Rom.
[EVO 4G Android Development] flashmasta:
I used fastboot to send the stock 2.2 w/ Clockwork mod and it boots OK, but nandroid recovery still doesn't want to recover backups...could it be because the nandroid backup was made with a different version of hboot?

Edit: The systems seems to be back to normal...looks like it boots straight to 2.2 instead of to bootloader, still rooted and has 76.200 hboot...so it's hard to be angry with that :) but it would nice to get the system backup recovered since it took a while to get everything downloaded and setup the way it was.
[EVO 4G Android Development] gibsonhtp:
same thing has happened to me...keeps booting in hboot, where can I flash the stock rom at? can I use the clockwork recovery to factory reset the device?

thank you.

edit: ok, pulled the card, plugged it into the computer, put .79 version into a full PC36IMG.zip image, plugged it back into the phone and reloaded. everything working again.
[EVO 4G Android Development] Karadorde:
Thanks for this fix. Thought I was done for sure. I did the same thing as you and I am back up and running again. It did wipe my phone however and now I am having trouble using apps that require root because there is an issue with my Superuser status. Something about how I need to flash a file on my sdcard so I can grant/deny SU permission. When I try to flash that file it says it is a bad file. Any ideas?
[EVO 4G Android Development] flashmasta:
Wish I knew...I fixed mine by flashing the stock 2.2 w/ ClockWorkMod included, it's in Part 2 of the EVO 2.2 root guide.

I went to fastboot usb from the bootloader, used Android SDK fastboot to push it out (fastboot PC36IMG.zip -w). I got a couple errors about data size, but upon reboot I had everything working including root and 76.200 hboot. I'm done messing with mine :)
[EVO 4G Android Development] nycdiplomat:
i hav a custom rom loaded presently on my evo....downloaded and flashed the evo hboot file and i still couldnt flash the cm6 on my evo. did i miss a step?
[EVO 4G Android Development] nycdiplomat:
edit: i also wiped everything and tried again to no avail. not sure why its not working....any advice?
[EVO 4G Android Development] Clay333:
Does anyone have a copy of the Hboot .93 bootloader by itself? I would like to have it so I can restore my stock rom after installing Cyanogen and downgrading to Hboot .76. If it is possible I would prefer one that can be flashed from recovery, but if not a PC36IMG would be fine to. Thanks. Please PM me with this file if you don't mind.
[EVO 4G Android Development] xeno314:
Actually, the unrevoked crew has posted an S-ON utility for those wishing to reenable the flag...

http://unrevoked.com/rootwiki/doku.php/public/forever
[EVO 4G Android Development] Andy S:
The file in the OP stuck me in hboot as well. I went back just like you and pulled the PC36IMG.zip out of the second part of the 2.2 root process to get back into the phone.

Don't know why it does it to some of us but others see it work fine.
[EVO 4G Android Development] wk84:
So how did you fix this? I am stuck at this point (boots straight into bootloader) after running the 2.2 new root method and applying this eng hboot loader (first file in OP). I am wondering if I should apply the stock rom or flash the CM6 and snap 8.1 kernel.....

Any help would be appreciated.
[EVO 4G Android Development] Andy S:
I got stuck there after running this, too. I went back to the last PC36IMG in the zip file in part 2 of the root process and loaded it again to get me out.
[EVO 4G Android Development] Karadorde:
Just an update that worked for me.

I took the hboot image from the first post (0.76.2000) and placed it into a full PC36IMG.zip with all of the other files (boot/radio/recovery/etc.)

I believe you could save yourself a step and find a PC36IMG already tailored to fit this scenario, but I couldn't track it down so this was my only other option.

Anyway, replaced the hboot image of my current PC36IMG with the ENG hboot from the first post, flashed it, and it worked perfectly. Couldn't be happier.
[EVO 4G Android Development] FoxHound630:
isnt the pc36img file in the OP's first post tailored that way?
[EVO 4G Android Development] Karadorde:
Unfortunately no. The PC36IMG in the OP is just the hboot image. I put that hboot image into a PC36IMG.zip with all of the other files like system/recovery/radio/etc to make it work.

Sent from my Fresh regaw EVO.
[EVO 4G Android Development] who1981:
CM6 Install Fail

CM6 kept giving me a (Status 7) until I used this PC36IMG.zip from hboot to update ma' booty.

I had recently Rooted my Factory 2.2 EVO using this method: "How to root Android 2.2 on the EVO 4G" - Unrevoked Forever!

So unless I did something wrong to screw up ROMs installing, apparently that root/unlock method breaks CM6 till you update your hboot.

As a note: I was stuck in a cycle with only hboot and recovery after the update, until I flashed CM6 from recovery. Then everything worked fine.
[EVO 4G Android Development] who1981:
hboot only

I already had the latest radio version and recovery, so I didn't need anything but a ENG hboot.

There are probably other new EVO users in this situation, so the lite PC36IMG.zip is useful.
[EVO 4G Android Development] Karadorde:
I had all of the latest recovery and radio and everything as well but just flashing that hboot img caused my phone to boot straight into bootloader and nowhere else (a problem that a few of us were having.) That is why I put that hboot into the PC36img with everything else. But yea just having the eng hboot image to flash without having to flash everything else is handy.

Sent from my Fresh regaw EVO.
[EVO 4G Android Development] pseudoremora:
Very nicely done figuring out the problem! Glad to see you got everything working.
[EVO 4G Android Development] Karadorde:
Thanks. Yea. We knew all along I needed that eng bootloader just how to get it working in the phone was the problem. Thanks for the help yesterday. Glad that it finally worked out as well.

Sent from my Fresh regaw EVO.
[EVO 4G Android Development] pseudoremora:
I was going to create a PC36IMG for people who only .76 Hboot, but since it can break the bootloader; your idea is probably better. There's no harm in flashing a new radio/wimax/recovery anyway. Hopefully this is a solution that can stick.
[EVO 4G Android Development] FoxHound630:
any one else tried that method?

did u push the new pc36img with eng to your sd card or will copy and paste work?

<~Noob
[EVO 4G Android Development] pseudoremora:
You can and push or mount your sdcard and copy to it. Then power off your phone. Holding down the power button while pressing while, should launch the bootloader window (white screen). The PC36IMG should be autodetected, let it run and it'll reboot afterwards.
[EVO 4G Android Development] Karadorde:
Just replied to your PM. I just drug it to my SD card and went from there. You could certainly push it, but the less I deal with ADB the better off I think I am haha. Let us know if this fix works for you.
[EVO 4G Android Development] ArkViper:
how did you add the hboot to the pc36img? and what is "everything else"?
[EVO 4G Android Development] Karadorde:
I took a "full" PC36IMG, one that had recovery/system/radio/etc in it, and removed the hboot image from it. The PC36IMG I used had hboot .93 in it. So I unzipped the PC36IMG I had, took out the hboot .93, and replaced it with the eng hboot image from the OP.
[EVO 4G Android Development] ArkViper:
Thank you, im trying it now with the pc36img from the second part of the froyo rooting.

it worked thanx again
[EVO 4G Android Development] Karadorde:
Happy it worked. Glad that we may have found a fix for those stuck in the bootloader.
[EVO 4G Android Development] mhaedo:
This solution also worked for me. I got stuck in hboot about 4 hours after getting a brand new EVO for a warranty claim. Almost had a heart attack when I got stuck in hboot. Thanks for the fix :)
[EVO 4G Android Development] HTCEvo24:
Can someone help? I unzipped the part 2 PC36IMG and replaced the .93 hboot with the one in the OP, now what do I do? Can I just put the original zip on the sdcard and the changed will be made? Sort of a noob. Thanks in advance!

edit: I put the PC36IMG on my sdcard and let the phone read it and I was still forced into fastboot. Please help???
[EVO 4G Android Development] Karadorde:
Just PM'd you back. But here is a basic version of the steps just incase anyone else needs help.

1. Unzip your full PC36IMG.zip (I got mine from the second part of regaw's root thread. I know a lot of people from that thread are coming to this one so they can flash CM6 etc...)

2. Remove hboot .93

3. Place hboot 76.2 (The engineering hboot from OP) in place of the former hboot .93

4. Zip everything back up.

Be sure you are zipping the contents (system/recovery/radio/etc) into their own PC36IMG.zip If you send the whole folder to a zipped file you will get all of the necessary items, in a folder, in a zipped folder. The phone won't be able to read this. Highlight everything, send to compressed file, and then rename if need be.

5. Place that newly zipped PC36IMG (with engineering hboot) onto your sdcard.

6. Boot into bootloader. Your phone should scan for the PC36IMG.zip that you just placed onto your sdcard.

7. Apply update.

8. Reboot.

Edit: Here is the PC36IMG that I edited and used for my phone.

PC36IMG with Eng Hboot Img
[EVO 4G Android Development] HTCEvo24:
Big thanks!!! Finally got it working, I used the highlight method you mentioned in the PM. Thanks for all the help!
[EVO 4G Android Development] Bizdady:
Im about to give a try. I want to keep a stock backup, a CM6 backup and I guess ill checkout CM6 nightly.
[EVO 4G Android Development] Bizdady:
sweet got backup of Sense stock rom and a backup of CM6 to work now together. Flashed CM6 nightly but thats in a bootloop lol Cyanogen(mod) robot skateboard logo just loops over and over and over and over lol
[EVO 4G Android Development] Andy S:
After my earlier problems of getting stuck in hboot, I finally tried replacing these in the zip as described above, and it stuck, too. I tried to recover with the Nandroid backup from Amon_RA I did right before I started, and it didn't work, still stuck in hboot.

Finally just gave up and took the rooted stock PC36IMG from part 2 of the root method, put the eng bootloader in there along with an updated version of Amon_RA recovery and just started from scratch. Restored with Titanium backup, etc.

I'm a bit confused as to why my amon_ra recovery file (and I tried two different backups) wouldn't get me past hboot.
[EVO 4G Android Development] Karadorde:
Andy,

Myself and someone else had a similar problem. I did a nandroid

backup before flashing the engineering bootloader and got an error when trying to recover from the issue of getting stuck in hboot/fastboot. I was using Clockwork at the time. Not sure why it happens but I feel your pain.

Sent from my Burnt Droid regaw EVO.
[EVO 4G Android Development] Andy S:
Yeah, several of us seem to have a problem just loading the bootloader without a more full PC36IMG. I think there's something weird going on that might not affect all phones.

But it has me worried about relying too much on nandroid backups. I threw my first 1.8.0 amon_ra backup on my server, just in case, since it should have my RSA keys, etc for wimax. Now I just hope it will work if I need it.

Have you used a recovery outside of the bootloader problem? I've gone through full phone setup with accounts and everything several times now, and am too lazy to do it just to test right now.

Still running the rooted stock ROM for a bit, just playing with kernels. But I want to move on at some point soon to other things. Would kind of like to know I can trust my backups if I need them before I start :)
[EVO 4G Android Development] bwolters:
I myself have copied the entirety of my root to my external, just in case.

I am sure like most of you last thing we want to happen is brick the phone.

So me not being very quick to catch on to this stuff is wondering that after reading this thread in entirety did this work correctly for anyone. Also "did this work" what exactly is the steps involved in "this" process.

I have done the "root your evo 2.2 steps" I am running Baked Snack 1.5 with Kernel #6, Upgraded Wimax, and Radio backed up using Amon's Recovery(also copy on external HD) lastly titanium backup. I have the same PC36IMG.zip file on my root as the one that I placed on there during the root process.

Am I ok to run some other way(than bricked recovery) of doing this that was attached on the first page of this thread for the initial fix but then turned into a bricked recovery thread.

Would someone that is "in the know" be kind enough to tell me in a few words step(s) process I should be doing; assuming my phone will do it nicely, then if no,t I sure have the resources in here(thread as a whole) and on my computer to recover from a bricking scare(boot loop)?????? <--- this is a question

######Hopefully someone could follow my late night ramblings to give me enough direction to me pull the trigger on doing this so I can change my bright as hell white splash screen.######
[EVO 4G Android Development] FoxHound630:
so after I correctly flashed the pc36img from the 2.2 root thread with the 76 hboot file I rebooted the phone and went into bootloader and trying to enter recovery but when i select it the red triangle with the phone pops up.

Did i loose my root?

What do i do now?
[EVO 4G Android Development] Karadorde:
I haven't needed to use a recovery. I'd like to think our recovery issues were specific only to this situation.

Personally I just backup for the sake of backing up. Usually if I am flashing a new ROM then I am probably in the mood to change everything anyway and don't care if I lose all of my data. All of my contacts are since through gmail so that is a breeze. Apps are backed up through Titanium and AppBrain. Other than those two things I could flash all day without a backup and be fine.

Sent from my Burnt Droid regaw EVO.
[EVO 4G Android Development] Karadorde:
Also another word of advice to people having issues. Make sure when you are zipping up your newly edited PC36IMG, that you are zipping the contents into their own folder. The phone won't recognize if you send the PC36IMG to a compressed folder because it will be all of the necessary items, in a folder, in a compressed folder. So be sure to highlight everything (system/recovery/etc), send them to a compressed folder, and then rename the folder if need be.

Hmm I don't know if that makes sense. Maybe I'll rewrite it in the morning. It is late haha.

Sent from my Burnt Droid regaw EVO.
[EVO 4G Android Development] FoxHound630:
lol it makes sense to us since we made that mistake already. Finally got RA1.8.0. to load via terminal app

Also big thanks to Karadorde for helping me trouble shoot.
[EVO 4G Android Development] onelovekir:
i dont' understand why loading a custom ROM allows it to boot properly...i shouldn't have to do that, but it works. the problem is when i restore my nand backup it goes back to the hboot loop WTF! any other suggestions? all i want the ENG bootloader is to change custom splash screens...thats it!
[EVO 4G Android Development] Andy S:
Exactly my problem, too.

I just put this along with the updated amon_ra recovery in the PC36IMG from the second half of the 2.2 root process and got them both updated that way.

I'm worried about why the nand backup won't restore. Unless the backup expects a certain bootloader, but that doesn't make sense to me.
[EVO 4G Android Development] CJ Morin:
This coming from a total noob with Android.

Would it be possible to use the nandroid back up images for the PC36IMG. That way we would be able to keep all of our data and still be able to flash say a custom or different recovery or radio or anything else and still have our user data saved. Without having to go back after the PC36IMG flash and then do the recovery. Just a question.
[EVO 4G Android Development] bigbiff:
Are you guys using this instead of the PCIMG36.zip provided in the 2.2 root? That's the only way I can think of you having a problem. You want to apply this after you follow all the steps in the 2.2 root, including flashing that PCIMG36.zip. This zip doesn't have the OS. It's like reflashing the bootloader, but you have no OS to boot to.
[EVO 4G Android Development] onelovekir:
That's actually a good question...then as someone stated earlier that the PC36IMG.zip would be "more full"
[EVO 4G Android Development] bwolters:
Just wondering if someone could answer my questions on page 8, please and thank you.
[EVO 4G Android Development] Karadorde:
To answer the first part, I posted and then updated the steps you will want to follow if you want to get the engineering bootloader without being stuck in hboot/fastboot. If you want some more detail than just let me know.

As for your other two parts I am not sure what you are asking. Are you still just asking for more info on the process? Just want to make sure I am not giving you any misinformation.
[EVO 4G Android Development] FoxHound630:
I think the easiest way to do this is to take the pc36img from the 2.2 root thread unzip it and replace the hbootimg with the enghboot then flash the full pc36img again. I did notice when I did this I had to do the unrevoked3 part again b.c I couldn't boot into recovery. After it flashed clockwork I used emulator app to flash RA 1.8.0 recovery and that's what worked for me. I haven't tried flashing any nand backups prior to flashing the enghboot.
[EVO 4G Android Development] Karadorde:
Agreed on the easiest method. I will try to dig out my modified PC36IMG.zip and just host it so people can save themselves a few steps and possibly a lot of headache.

Sounds like you had a lot of problems. When I got stuck in fastboot/bootloader I reflashed the second PC36IMG.zip from the 2.2 root thread and got my phone working that way. Never had to mess with unrevoked. From there I flashed my modified PC36IMG and went on about life. Also like I told you I used the Clockwork Rom Mgr to flash to Amon_Ra. I liked Clockwork for the most part but the ROM I wanted to use had some conflicts with it for some reason.

EDIT:

I used mediafire so downloads may be limited...

PC36IMG with Eng Hboot Img
[EVO 4G Android Development] onelovekir:
nope...rooted fully with Regaw's process and then tried this one as well as a couple others on this forum, all 3 did not work for me. they all load and install the ENG 0.76 bootloader but they all go into an hboot loop that i can't get out of until i either flash it back to 0.93 or i flash a custom rom. if i flash a custom ROM then i lose the way i want and had my EVO. so i try to do a nand restore which does restore fine, but then it throws me back into an hboot loop. in the end i just revert back to 0.93. I dont know what is causing it. i flashed my splash screen which the only reason why i really needed the ENG bootloader, i just wanted those extra fastboot commands that would come in handy at times, other than that i really don't need it.
[EVO 4G Android Development] onelovekir:
how can i create a modified PC36IMG.zip with my settings and radios and everything i have now?
[EVO 4G Android Development] Karadorde:
Did you go through regaw's root method? That file will keep everything up to date because it uses his final PC36IMG. So you get the engineering bootloader but updated radios and everything else. As far as settings...I am not sure. Do a Titanium Backup before and if it erases anything then you can just reload from there. I just went ahead and started from scratch after I flashed everything and got it the way I wanted it.
[EVO 4G Android Development] outsidah:
OP should be updated to reflect all the issues most seem to be having so everyone is prepared to correct if necessary.

My EVO also got stuck in a bootloader loop.
[EVO 4G Android Development] Andy S:
No. I did the full process, was running the rooted stock 2.2 image from the root thread. After a couple of days I tried to flash this, which stuck me in hboot.

I finally took the 2.2 PC36IMG.zip from the root thread, dropped this along with amon_ra 1.8.0 into the zip, then flashed all again to finally get everything updated at the same time.

You don't even really have to unzip/rezip. I just dropped them in 7-zip.

Also didn't have to do the unrevoked 3 part again. Mine went normally.

BTW, I noticed that the 2.2 ROM now in the thread has been updated to include Amon_RA 1.8.0, so all you need is the eng hboot added.