yashsingh1/xdaforums huggingface dataset:
[Captivate Q&A, Help & Troubleshooting] abezapata:
When I plug in the phone it shows the batter and the loading bars for a couple of seconds and then automatically enters the recovery menu. I have not touched any of the buttons the whole time this happens.
[Captivate Q&A, Help & Troubleshooting] Zilch25:
So if you unplug the phone from USB while it's off, then hold volume down, and plug in USB nothing happens or does it do the battery thing?
[Captivate Q&A, Help & Troubleshooting] abezapata:
Okay so through some miracle of god I got the adb to detect the phone and I sent it into download mode but odin wasnt open and now I am getting the mobile phone image/ warning image/ pc image!
[Captivate Q&A, Help & Troubleshooting] Zilch25:
From that screen if you can't get your button combos to work you're pretty much toast =/

You can try:

USB

Unplug battery

Plug in battery

Hold both volume buttons + power

keep holding the buttons, the screen will turn off, then turn back on

As soon as the screen goes black again, release the power button and hope that you get the android digger
[Captivate Q&A, Help & Troubleshooting] abezapata:
MY PHONE IS FIXED!!!!!!!!!!!! I think what did the trick is I installed Samsung Kies and that gave me all of the drivers for the samsung phone thus giving me the ability to use adb in recovery. Thanks guys! Your'e post encouraged me to keep trying and not cuddle up in the fetal position crying myself to sleep!
[Captivate Q&A, Help & Troubleshooting] abezapata:
Yeah thanks man once I saw those icons I knew I was good because I have seen them before. Thanks for the help!
[Captivate Q&A, Help & Troubleshooting] Zilch25:
Whew... well I'm glad you got it back, we've had so many perma-fails lately with the OTA these days it's nice to see a miraculous recovery :) Improves morale around here!
[Captivate Q&A, Help & Troubleshooting] singlebeam:
this thread just saved my life. thank you to everyone that contributed :D
[Captivate Q&A, Help & Troubleshooting] KCutrer1:
For future reference, since the button combos are different on the i9000 vs. the Captivate, I've found that I get into download mode every time on an i9000 ROM by yanking the battery, and then re-inserting it while holding volume down+power. I know you already got it resolved, but just keep that in mind, as it has never failed me. Only wish I knew about that combo back during the whole JPC fiasco!
[EVO 4G Q&A, Help & Troubleshooting] debugguy:
What can wipe out your RSA Private Keys.

OK fine, can't get an answer, I will answer the question myself, call this a work in progress......

This is what I know:

(1) RSA Keys are needed to authenticate to the Clear/Sprint network, meaning if the keys are not there or have been removed, no 4G for you.

(2) Always backup your RSA Private Keys before you update your radio (question is how, does nandroid back them up, does Titanium, don't know yet).

First let's check them to see if your RSA keys are intact, do this: "What Removes your RSA PRIVATE KEY", I highly recommend you do NOT upgrade your radio.

** You will need to download/install the Android SDK **

(Install Adroid SDK: Download from here if you have not already installed it. http://developer.android.com/sdk/index.html)

Once installed, connect the USB and select "Charge Only"

Windows 7 Explorer, navigate to the Tools folder, shift+right mouse button/open command window here

c:\android-sdk-windows\tools> adb shell wimax_mtd

Validation of the output values (1) Partition = OK, (2) Verify WIMAX Tag = Pass, (3) Check Firmware File = Match,

(4) Dev MAC = XX:XX:XX:XX:XX:XX (a hex number), (5) Read properties from flash = OK

So good so far, now one more check:

c:\android-sdk-windows\tools> adb shell

# grep RSA /dev/mtd/mtd0

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA

ReRSA

RSA requests

RSA replies

-----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY-----

Update: If you don't get the above output, you are now an official xda-Developer tester, welcome to the party!

FYI: To find out what your CORRECT MAC address is, pull the battery you will see it there.

So now, tester person, go here and let us know the results: http://xdaforums.com/showthread.php?t=715525&page=8 (Post 1)

Hey, look at the bright side, they may be light at the end of the tunnel.

What is confusing about all this sh!t, I can connect to 4G, AFTER flashing to the lastest radio/wimax/pri. But the performance is far less than

I want and expect, so enter DebugGuy into the testing arena, yeah me.

Radio/WIMAX/PRI via Calculin: http://xdaforums.com/showthread.php?t=715525&page=8 (Post 1)

or

Radio/WIMAX/PRI via joeykrim : http://xdaforums.com/showthread.php?t=787756&page=13 (Post 1)

What I am doing at this very moment is observing the WIMAX as it works, unfortunately I am outside of an 4G area

it's like I have it all around me, but not on my street, POS. Anyway, do this and see if you see any errors at all:

start a shell, follow the directions above, then type this:

c:\android-sdk-windows\tools>adb shell

# set -o vi (this will give you the history of your commands, use up/dwn arrows to repeat commands)

# cd /data/wimax/log

# tail -f sequansd.log

Now start 4G radio and observe the log, see if you see any errors. Don't get to upset if you see errors, the real question we have to figure out, is what are the BAD errors, anything to do with your MAC in the context of an error would probably be a bad sign.

...more to come.
[EVO 4G Q&A, Help & Troubleshooting] baknblack:
I think a lot of people had it happen when flashing to the wimax partition. I'm really surprised that a don't do this!!! thread hasn't been done. I just looked this morning and a new person has killed their 4g by flashing radio and wimax. I guess I was dumb myself and flashed radio and pri. I looked at all 3 things and my wimax was already the latest version or I would of flashed it also and possibly destroyed my 4g. was reading through old threads and saw this was a problem even back in July. And still no DON'T DO THIS STICKY!!!! Thanks for trying to do this for us new people.
[EVO 4G Q&A, Help & Troubleshooting] drmacinyasha:
One thing to note: AmonRA 1.8.0 does back up the wimax partition. Titanium Backup does not.
[EVO 4G Q&A, Help & Troubleshooting] tpdtopcop:
I have one question. I am using ROM manager and have done a nandroid backup using clockwork. Since reading this I have also done another nandroid backup using AmonRA 1.8.0. Now will the amon ra nandroid backup remove the clockwork nandroid backup or will I just now have both?

Thanks

topcop
[EVO 4G Q&A, Help & Troubleshooting] I[E:
You'll have both
[EVO 4G Q&A, Help & Troubleshooting] drmacinyasha:
You'll have both since they use different folders (AR uses /sdcard/nandroid/*serial number*/*date*/ whereas CWM uses /sdcard/clockworkmod/backup/*serial number*/*date*/ (from what I remember).
[EVO 4G Q&A, Help & Troubleshooting] jpatterson350:
When I run grep RSA /dev/mtd/mtd0 I get the following.

Please tell me the below information is good?

I am able to connect to 4G in orange county and speeds are from 1200kb to 3800kb. My question is in some parts of LA I get the searching, authenticating, connecting then back to searching but others can connect. Note I do have the Begin RSA private key and End private key but it doesn't show any numbers just what you see below. So you do you think am I OK? PS I only have one MAC address and its the correct one.

# busybox grep RSA dev/mtd/mtd0

busybox grep RSA dev/mtd/mtd0

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA

ReRSA

RSA requests

RSA replies

-----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY-----

#

Thanks for taking the time to help us!!
[EVO 4G Q&A, Help & Troubleshooting] debugguy:
Life is good my brother, laughing, exactly what you should see.

On another note concerning 4G. Let it be known, I AM NOT IMPRESSED. Things I have noticed:

1. If you are in a 4G zone then leave the zone, re-enter the 4G zone, it will pick it back up --- this is good.

2. What sux about WIMAX is I am not seeing the speeds I should see and this is very disappointing to me.

So for yours to be behaving the way you descirbe it, does not surprise me, I would say, if you connect and stay in the immediate

area where you are connected and it STAYS connected, this would be a good thing and what we would expect.

However, if THIS is when you connect, disconnect, reconnect, disconnect, then I would take the phone back to Sprint and get a new one.

If you watch the press much, WIMAX is old technology and unfortunately the bed Sprint has laid in because it allowed them to enter

the market the quickest. Also note, the CEO and 2 other VPs from Sprint stepped down OFF of the Clearwire board this week, hmmm,

wonder what this means.

Anyway, I believe you are just fine, that is exactly the output we expect. Mainly the last two lines:

-----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY-----

If you don't have these, you will NOT be able to connect to 4G and you will NOT be able to fix it.

The moral of the story is, I WOULD NOT recommend ANYONE upgrade there Radio/WIMAX or NV until we ALL have a better understanding

of what EXACTLY the side effects are.

One last important thing to know AROM RA is the ONLY recovery that backs up your WIMAX settings and partition.

Do I need to tell you how important it is to do a nandroid backup OFTEN. And its more than just backup, turn the frig around and restore

to ENSURE the friggin backup will work when you need it, hello. How often have I heard of folks in here say, "well I did the nandroid backup,

but when I tried to restore" = bad backup. CHECKIT before you NEED IT.

Perform the nandroid backup, reboot, go back into recovery, perform a nandroid restore.

Can you think of a more unpleasant surprise to endure. Later.
[EVO 4G Q&A, Help & Troubleshooting] jpatterson350:
Awesome! Thanks again for your help!
[EVO 4G Q&A, Help & Troubleshooting] debugguy:
[A] What Removes your RSA PRIVATE KEY

Unfortunately there are probably (1+N) reasons for this to happen. Albeit I think it is safe to say, flashing radios is NOT the problem. The moral of the story here is, use ARMON RA and nandroid backup before you flash "anything". Keep a copy of the wimax.img on your laptop/desktop as well as your /sdcard/, this way you always have a recovery option. :rolleyes:

For a more complete analysis of this issue, see the thread

STOP - Do not flash your Radio/WIMAX

See post 25.
[EVO 4G Q&A, Help & Troubleshooting] kessomatt:
Where in orange county are you? It may be time to flash back to a sense rom for me!
[EVO 4G Q&A, Help & Troubleshooting] TrimTripton:
I'm afraid I screwed the pooch. Evo came with stock Froyo and I used Unrevoked first method of rooting (downgraded to 2.1). I've checked my Nandroid backups and NONE have wimax.img included in them. I get the following when I adb shell wimax_mtd:

wimax_mtd

Open WiMAX partition ........ OK

Get HTC WiMAX Tag ........ ERROR

OK

Verify WiMAX Tag (↑j↕¿☻)........ NOT MATCH

PASS

Read WiMAX partition ........ ERROR

OK

Check Firwmare Version (4.6.2.2v26023_) ........ p,☺░¿─

Verify MFG Fireware Key ........ NOT MATCH

[1] + Stopped (signal) wimax_mtd

[1] Segmentation fault wimax_mtd

But when I

adb shell

# grep RSA /dev/mtd/mtd0

I get this:

grep RSA /dev/mtd/mtd0

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA

ReRSA

RSA requests

RSA replies

-----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY-----

Please tell me my RSA key is not lost forever.
[EVO 4G Q&A, Help & Troubleshooting] ridleyj329:
c:\android-sdk-windows\tools> adb shell wimax_mtd

Validation of the output values (1) Partition = OK, (2) Verify WIMAX Tag = Pass, (3) Check Firmware File = Match,

(4) Dev MAC = XX:XX:XX:XX:XX:XX (a hex number), (5) Read properties from flash = OK

So good so far, now one more check:

c:\android-sdk-windows\tools> adb shell

# grep RSA /dev/mtd/mtd0

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA-REQUEST

RSA-REPLY

RSA-REJECT

RSA-ACK

RSA-1024

RSA

ReRSA

RSA requests

RSA replies

-----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY-----

Update: If you don't get the above output, you are now an official xda-Developer tester, welcome to the party!

...more to come.[/QUOTE]

when i run this i get the same results except for the...

"-----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY--"

what does that mean?
[EVO 4G Q&A, Help & Troubleshooting] Blitzpwnage:
Your keys are fine
[EVO 4G Q&A, Help & Troubleshooting] ridleyj329:
even though im not getting those last two lines?
[EVO 4G Q&A, Help & Troubleshooting] JerryN2U:
Microsoft Windows [Version 6.1.7600]

Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users>cd android/tools

C:\Users\android\tools>adb shell wimax_mtd

Open WiMAX partition ........ ERROR

OK

Get HTC WiMAX Tag ........ ERROR

OK

Verify WiMAX Tag (↑j↕¿☻)........ NOT MATCH

PASS

Read WiMAX partition ........ ERROR

OK

Check Firwmare Version (4.6.2.2v26023_) ........ p,☺░¿─

Verify MFG Fireware Key ........ NOT MATCH

[1] Segmentation fault wimax_mtd

This is what I get when I try. Does this mean I lost my RSA keys?? I couldn't do a grep.
[EVO 4G Q&A, Help & Troubleshooting] david279:
try doing adb shell then wimax_mtd
[EVO 4G Q&A, Help & Troubleshooting] JerryN2U:
that worked better.. Thanks Here's my output now..

C:\Users>cd android/tools

C:\Users\android\tools>adb shell

$ su

su

# wimax_mtd

wimax_mtd

Open WiMAX partition ........ OK

Get HTC WiMAX Tag ........ OK

Verify WiMAX Tag (HTC-WiMAX-SQN1130)........ PASS

Read WiMAX partition ........ OK

Check Firwmare Version (4.6.2.2v26023_) ........ 4.6.2.2v26023_

Check Firwmare File ........ MATCH

Dev MAC =

Read properties from flash ..... OK

and the Dev MAC matches my label under the battery..
[EVO 4G Q&A, Help & Troubleshooting] david279:
good job dude. your safe.....
[EVO 4G Q&A, Help & Troubleshooting] sensibreed:
When i execute grep RSA /dev/mtd/mtd0 i get..

# grep RSA /dev/mtd/mtd0

grep RSA /dev/mtd/mtd0

<rsa>

</rsa>

#

is it safe to say my RSA keys are gone.
[EVO 4G Q&A, Help & Troubleshooting] mainstang:
Im about to root with unrevoked and found out it comes with clockwork recovery. My question is will clockwork save the wimax rsa key or will I need to install AmonRA recovery. Also should I do a nandriod on clocwork before installing AmonRA.
[EVO 4G Q&A, Help & Troubleshooting] xxxgeooegxxx:
I have been flashing since I got my evo on June 4th non stop!! I have never used amonra recovery, and have also upgraded my NV,radio, and wimax. I have never had trouble with my 4g keys?? I am also a flashaholic!! Every day I switch from cm6 nightlys, miui, and stock sense for 4g. I also use clockwork ( thanks koush) for all my nandroids! Oh and a side note, I have NEVER HAD PROBLEMS WIPING WITH CLOCKWORK!! I am also a noob, I'm just a good reader!!
[EVO 4G Q&A, Help & Troubleshooting] xxxgeooegxxx:
Clockwork does not save RSA keys from what I read. And after you root download rom manager from the market and with that you can switch to amonsra!! Always nandroid!! It will save your life!!
[EVO 4G Q&A, Help & Troubleshooting] dynamicpda:
Thanks for starting this thread. I just got a hboot 2.02 Evo in a 4G area. It works decent I'd like to keep it whilst unrooting and flashing a different ROM.

I'm still waiting for the S-OFF methods to mature and also learn as much as I can about your subject. What does kill RSA keys??

Does factory reset keep or wipe the wimax partition? To me, without any other knowledge "factory reset" should mean complete wipe, yet people who have gone through a factory reset keep their 4G settings (RSA keys). Can someone help me understand this?
[EVO 4G Q&A, Help & Troubleshooting] theoner1:
I'm 100% with you on this one. Flash radio, wimax and rom like crazy and still able to recover my wimax or never lost my key. If my 4g would'nt connect while detecting signal all I do is follow Toast root method #2 again and start over (BTW, thanks a million Toast).

In a matter of fact I perferred CWM over Amon 1.8. Yes Amon 1.8 backup my wimax key/partition and all but restoring my nandroid with 1.8 kinda mess up my wimax. 4g wouldn't connect although it pickup sprint signal or would disconnect shortly after, had this happen a while back.
[EVO 4G Q&A, Help & Troubleshooting] dynamicpda:
I thought for sure the wiping and radio flashing required for rooting and then updating to most recent stock would kill the RSA keys.

I used WiMax fine for a week before rooting and flashing a new radio and rom. The Wimax functionality survived just fine. Did the keys not get touched at all or does Sprint reprovision the keys each time?
[EVO 4G Q&A, Help & Troubleshooting] xHausx:
I still have my 002 phone from launch and my MAC and RSA keys are fine. I used rageagainstthecage to get root, flashed the eng-pc36img from Toast and then updated my radios and 4G separate.

I remember seeing that the older unrevoked hosed a bunch of people's 4G, is that version still out there and being used?
[EVO 4G Q&A, Help & Troubleshooting] kf2m:
Try grep "RSA" /dev/mtd/mtd0

You have to have the string encased in " " to search correctly.

sent from my Evo 4G using Taptalk
[EVO 4G Q&A, Help & Troubleshooting] riironman:
so even if i flash back to factory my 4g is lost?
[EVO 4G Q&A, Help & Troubleshooting] HAXSUNG GAL:
Hey Gang, have enjoyed reading this thread. I, like many other noobie (and not so noob) ****s before me (LOL!) stupidly flashed my radio/wimax whatever ya call it. After sitting like a dumb **** for 2 days reading every thread in XDA to try to solve my issues (and flashing only god knows what, I figured what do I have to lose? I'm now an official developer-tester!) everything strangely is working just fine again....rooted 2.2.....joeykrim method.....flashed my radio a gazillion times....in and out of adb so much my fingers are sore from rebooting .....reboot reboot.....and suddenly....everything working again like it was never broke. WTF?! I am NOT in a 4g area so can't help anybody there.....
[EVO 4G Q&A, Help & Troubleshooting] redsolar:
There was a lot of discussion about this in this thread:

http://xdaforums.com/showthread.php?t=716694

In short, there was a botched WiMax update (not a root method, or anything else) which is believed to have come from Unrevoked (and later announced by them) which used a command that wrote a raw image without any regard for WiMax keys. People who flashed it, lost wimax (forever, or until device was replaced). This is the major known reason as to why people permanently lost WiMax. Other reasons in all cases I have seen were not permanent, as they involved mismatching firmwares, poor wimax signal, unprovisioned phones, user error, etc.

If wimax updates are flashed using correct comands, RSA keys are safe (not that backing it up isn't a good idea anyway).

Amon Ra Recovery as of 1.8.0.0 backs up wimax partition.
[EVO 4G Q&A, Help & Troubleshooting] ccicchitelli:
When I run grep RSA /dev/mtd/mtd0 I get back "grep: not found". I assume this means my RSA keys are gone. Am I correct there is no known way to fix this? Do I need to do a TEP exchange?

My output from the wimax_mtd command seems to all be OK, including my MAC.

Update: I was able to get my 4G running by following this method: http://xdaforums.com/showthread.php?t=725041

I still cannot get my 4G keys to display.
[EVO 4G Q&A, Help & Troubleshooting] Stroid01:
After you used that method to get your 4g working did u try running # grep RSA /dev/mtd/mtd0 again? It will not actually display the key but will display -----BEGIN RSA PRIVATE KEY-----

-----END RSA PRIVATE KEY-----. from my reading I think you have the RSA Key because if you run the wimax_mtd command and you see the correct results my guess is you are ok with the RSA Key. I had issues getting the commands to display the proper information, one user recommended a reboot and after i rebooted the commands gave me the correct output. Hope that helped.
[EVO 4G Q&A, Help & Troubleshooting] kaz007:
when i run grep RSA /dev/mtd/mtd0 i get segmentation fault, i can connect to 4g but the speeds are super slow 0.03Mbps down/ 0.63Mbps up is it possible that my RSA keys are messed up?
[EVO 4G Q&A, Help & Troubleshooting] fachadick:
As I understand it, if your keys are screwed up, you wouldn't be able to connect to 4g at all.

Sent from my blah blah blah blah
[EVO 4G Q&A, Help & Troubleshooting] ccicchitelli:
I did, and the result was the same. It just says "grep: not found" every time. Other ADB commands work, so I know it's not a connection issue.
[EVO 4G Q&A, Help & Troubleshooting] fachadick:
Stupid question, but I've seen people miss this part before. Grep requires busybox, are you sure you have it installed?

Sent from my blah blah blah blah
[EVO 4G Q&A, Help & Troubleshooting] mhmobile:
I left the following on another thread, perhaps someone here knows whats going on...

Not sure what to make of this... I leave 4G scanning on because it appears to be slowly rolling out in OC California and there are several areas where I pick up a signal and connect successfully (speed tested at 10.85 MB down). I had recently flashed a Ava rom and found that my EVO no longer found 4G in the areas it had before. I flashed back to Fresh and everything went back to normal.

I wanted to run Ava's ROM again and the posts over there referred me to here to resolve the 4G issue. My MAC is not jacked up but when I check the rsa status, I get <rsa> blank, next line </rsa>. I used a term emulator on my device as well as adb shell on my PC.

From what I've read here, based on the rsa error, I shouldn't be getting 4G at all.

Any ideas?
[EVO 4G Q&A, Help & Troubleshooting] kf2m:
For those who get the grep not found try typing:

busybox grep "RSA" thentherestofthestring

Getting the not found means busybox is not fully installed. If you get busybox not found then either install titanium backup or busybox from the market.

sent from my Evo 4G using Taptalk
[EVO 4G Q&A, Help & Troubleshooting] Stroid01:
Agreed Busybox needs to be installed. I used titanium backup to install mine.
[EVO 4G Q&A, Help & Troubleshooting] kaz007:
So my 4g is intacted?

Edit: how would you explain slow 4g speeds? Just took a speed test and got .04Mbps down/.13Mbps up
[EVO 4G Q&A, Help & Troubleshooting] fachadick:
Don't know why its slow - network issues maybe? But if your keys were busted, it wouldn't let you connect

Sent from my blah blah blah blah
[EVO 4G Q&A, Help & Troubleshooting] kaz007:
This has been going on for almost 3 weeks also I live in the DFW area
[EVO 4G Q&A, Help & Troubleshooting] dkdude36:
ok, now i have a wired situation. just flashed myns rls4. looks and works great. 4g is operational, and fast speeds. now i add some mods, and 4g cant turn on. it just sits at turning on. anybody with a solution?
[EVO 4G Q&A, Help & Troubleshooting] mhmobile:
Has anyone been able to figure out why some people (like me) can still connect to 4G even though my RSA keys are gone?
[EVO 4G Q&A, Help & Troubleshooting] cc2278:
Question does anyone know if the RSA keys gets killed. What is the symptoms when you turn 4g on. My evo is just looping when I have 4g on will not connect.

I rooted my evo with unrevoked, everything is working fine except 4g. When 4g

is on. in 4g settings, network notification is check, 4g network is available keep

flashing, scanning..., connecting to sprint, obtaining ip address from sprint, it just keep looping will not connect.

Is my RSA keys gone?

Thanks!
[EVO 4G Q&A, Help & Troubleshooting] Bielinsk:
The first market fix works, and functions with the old market. Trying to update that market causes FC. Have to go into applications and Uninstall Updates, and I am able to use the old market.
[EVO 4G Q&A, Help & Troubleshooting] mobilemaniac:
I was getting the "grep: not found" error, until I typed busybox before the grep command. I had busybox installed by Ti backup. Thanks for the tip! Hope this works for others.