Can I flash a older radio? - Sprint HTC EVO 4G LTE

My EVO LTE is s-off with hboot 1.12. I installed the latest jelly bean firmware through the bootloader and my radio is now 1.12.11.1119. I've noticed my 3g speeds are much slower and was wondering if I could flash a previous radio. I've done some searching and everything I have read says trying to downgrade my firmware will brick my EVO. Can I flash only the radio through recovery? Thanks for any help.

Yes
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Thanks.

Do not downgrade radio if you don't want a paper device.
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I think it may be possible to do but it is a very big risk. If you are going to attempt it, you better have insurance. Let us know what happens

I do it. I've never had a problem. I only use the radio from captain throwback zip files. The new radio stinks. My days as home went from900 kbs to 200. I switched to last radio and data came back.
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DO NOT DO IT. I did not read Captain's warning in red letters, at themikmik.com, and my phone got bricked. Radios could be rolled back with the OG EVO, but the LTE is a different beast.
Sent from my EVO using xda premium

I was able to flash an older radio but it didn't help with my 3g speeds at all. I then reinstalled the latest firmware to get the latest radios back. I think sprint was just extra slow for a few days because my speeds are back to normal.

Are your guys who are bricks wiping dalvik and cache? I don't understand why some can and some can't. I bet it's the production date of the phone. Who knows?
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Related

[Q] No More 4G Help!!

Hey Fellas, i used Revolution to root my phone, i have since put many roms on my phone, the rom i currently have is shooter sense 3.0....i love the ROM its awesome, i am in a 4G coverage area and my 4G just says scanning but never connects, just says scannning, so i restored back to some stock rooted rom that i d/l online, 4g still doesnt work. so i then d/l the latest radio by Caulking or whatever, and still no 4G, just says scanning, oi am now back to the shooter sense 3.0 rom and still no 4G, and im in a 4G coverage area, how do i fix this?
Can somebody bump this
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Well I guess I can just use this forum to up my posts to 10 so I can post in the developer forum, since nobody is answering anyways
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Just used WiMAX RSa key checker, says my keys are there
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Go into the setting click the system info or something and you will find a thing that says update profile. Click that and it should work
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Had this same issue occur on my EVO4G, back in the day. Basically when they first were new. Messed around too much and somehow lost my WiMax keys. Since then I believe they've come up with several ways to repair the issue. What I did then was RUU back to factory, and start the whole root process over. That got my WiMax back.
prboy1969 said:
Had this same issue occur on my EVO4G, back in the day. Basically when they first were new. Messed around too much and somehow lost my WiMax keys. Since then I believe they've come up with several ways to repair the issue. What I did then was RUU back to factory, and start the whole root process over. That got my WiMax back.
Click to expand...
Click to collapse
Reset to factory RUU using the supersonic RUU utility, on the hboot screen it still says s-off and revolutionary at the top...Sole Conslusion is that this phone, per revolutionary CANNOT be unrooted, now that i have the bone stock rom on my evo, the 4G doesnt work, i know this because on the stock evo rom, while searching for 4g you get in the top left part of the screen it states "4G!" which means there is no 4G, well that little symbol is not on the top the screen in either my new rom or the stock rom, stating something is wrong with my 4G...i think i have a unique situation that i need to be fixed...and i cannot find a fix for this
somebody bump this, i think i have a unique situation
Bump
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aight this makes 10 posts, im moving this to a forum where it will get more attention...
Lol which phone do u have? Run the ruu if its an htc like the other guy said
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vabeachfc3s said:
Lol which phone do u have? Run the ruu if its an htc like the other guy said
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Click to expand...
Click to collapse
i did, i ran RUU_Supersonic_1.32.651.1_Radio_1.39.00.04.26_release_171253...same problem
Try flashing the pc36.img file from bootloader. Did u already try updating your prl?
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Did i check in settings and make sure its not set to evdo 1x?
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vabeachfc3s said:
Did i check in settings and make sure its not set to evdo 1x?
Sent from my MIUI.us Sensation 4G using XDA App
Click to expand...
Click to collapse
i do sometimes see that when i go to an area where it would typically roam, it instead says 1X at the top, i will check to see this evdo thing you speak of right now

Sprint radio compatability

I currently have an evo 3d. I'm running the latest ICS roms and noticed that my service is terrible. I have read that the radio isn't very good and I'm not the only one having this issue. Is it possible to flash a different radio on the new ICS roms or do they require the current radio only. Oh, and this is on the sprint CDMA network. Thanks for any help...
Nope just has to be for the Evo 3d I use the gb radio on ics even though I get better service on the ics one
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kickyoace said:
Nope just has to be for the Evo 3d I use the gb radio on ics even though I get better service on the ics one
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Click to expand...
Click to collapse
That's an interesting choice lol
Sent from my PG86100 using Tapatalk 2
In theory, you could flash a Verizon radio to a Sprint phone. I haven't tried it since pre 4G days. For instance, I had Sprint's HTC Hero and I would flash radios made for Verizon's HTC Eris. But only when the Eris would have a newer radio available. I never had an issue. I wouldn't try flashing a WiMax or LTE radio. I bet the developer Toast would have more input as to whether it is still possible or not. I wouldn't just go flashing them because that's pretty much the only way to brick your phone.
Sent from my iPhone with the bigger GeeBees.

[Q] Where can I download the Radios for the EVO LTE?

Hello,
My EVO LTE used to get somewhat consistent LTE connection. Now I have flashed many roms and recently done an S-Off and noticed that the Radio is a lot worse now. Where can I flash the latest radios, modem, etc.?
Thanks
http://forum.xda-developers.com/showthread.php?t=1704612
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Issues with data... more than the standard issue. Please help.

Ok so my data has not been working at all the past few days. I have tried stock ROM, meanrom, and cm10. It would work for a few minutes and then go to nothing. I finally tried switching it to just CDMA and it works... I'm in a 4g lte area so why would that be? Also if I try to update prl, firmware, or profile it just keeps searching for hours. What should I do?
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Do you have the newest radios? They end in .809 or somethin, check your baseband.
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---------- Post added at 03:35 PM ---------- Previous post was at 03:34 PM ----------
.0809 to be exact.
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Its 1.12.11.0809. Does that sound right?
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spencer311 said:
Its 1.12.11.0809. Does that sound right?
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Click to expand...
Click to collapse
yes
HTC EVO LTE
Is there anything els that could be causing this?
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spencer311 said:
Is there anything els that could be causing this?
Sent from my EVO using XDA Premium HD app
Click to expand...
Click to collapse
if you're on a sense rom try doing the ##72786# on your phone pad that is going torefresh all your service including data
HTC EVO LTE
Thanks! Flashing stock with goodies right now to try it out. If I flash back to cm10 will that cancel out all the updates though?
Ok I tried it but I don't have the password... Even tried the meid converter and used that password and it still didn't let me.
spencer311 said:
Thanks! Flashing stock with goodies right now to try it out. If I flash back to cm10 will that cancel out all the updates though?
Ok I tried it but I don't have the password... Even tried the meid converter and used that password and it still didn't let me.
Click to expand...
Click to collapse
if you dont know your msl and if you're connected to wifi you can download msl reader from the play store... or you can call sprint and they'll give it to you...
HTC EVO LTE
A couple of days ago, my phone had no 3G service, but it would sometimes pickup 4G but my connection usually didn't last very long.
I was running the updated radio 1.12.11.0809.
I downgraded back to the stock 1.13.651.1 ROM and I had my 3G connection back.
Im sticking with the stock radio.
they are upgrading your tower in your area. that i am 100000% sure of
that happened to me also, and a couple of days later it will be back to normal again, and switching it back to cdma will work.
when they finish upgrading the towers is should be good again.
flex360 said:
they are upgrading your tower in your area. that i am 100000% sure of
that happened to me also, and a couple of days later it will be back to normal again, and switching it back to cdma will work.
when they finish upgrading the towers is should be good again.
Click to expand...
Click to collapse
Well It has been over a week... maybe even 2 weeks. Is that normal?
this is happening to me, I was on the phone with sprint for over an hour....I have done the ##78286# code with my MSL and it resets, but I still boot up to just a x/signal bar....Somehow i think my radios corrupted and will not be able to use this phone....
edit: i was able to get signal, but still having problems now after a full ##786# code

I'm a born again noon I guess..

Having the damnest time getting the WiFi hotspot going again. I'm running sinner LTE 1.0. Kernal [email protected]#1 SMP preempt. Baseband is 1.13.11.0830
Build number 1.29.709.4 CL 165408 release-keys..
I have tried to get captains 4.3 but I can never get the hboot and recovery to upgrade and stay.. I feel like such a noob.. I should've rooted this phone before sprint got greedy
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Are you s-off?
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Yep... Lol.. I didn't see the WiFi app included in sinner. Got wifi hotspot back, just not getting 4g
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Hate to bother any idea what Im missing as far as the 4g goes?
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Nothing, if you are not in an LTE area. Not sure if that is the question being asked.
And...I'm not sure what you mean by the Hboot not staying. The firmware seems to have flashed just fine, since you have the latest radios.
aarsyl said:
Nothing, if you are not in an LTE. Not sure if that is the question being asked.
And...I'm not sure what you mean by the Hboot not staying. The firmware seems to have flashed just fine, since you have the latest radios.
Click to expand...
Click to collapse
If you want to be technical, he has the firmware from the 3.17 update, not 4.3. But that's another issue in and of itself.
Sent from my EVO LTE
Yeah the 4.3 wasn't taking .. I'll try again eventually.. but fir whatever reason I don't get the 4g logo I was getting
sprhr0 said:
Yeah the 4.3 wasn't taking .. I'll try again eventually.. but fir whatever reason I don't get the 4g logo I was getting
Click to expand...
Click to collapse
If you're S-off, just run the 4.3 RUU. Afterwards you can install a custom recovery again and flash SuperSU. Then you can flash Captain's ROM or whatever else you'd like so long as it's based on the new layout.
Sent from my EVO LTE
Yeah I've been rooting since my Inspire on at&t. Then the HTC vivid... Then in switched to sprint.. Got a galaxy 2 which was almost as bad as the iPhone 3g from years ago. I finally got the evolte.. I didn't root it soon enough so now I'm paying the price. I'll flash the 4.3 then the recovery and hboot?
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Firmware, recovery, then ROM.
Sent from my EVO LTE
I dunno what was different from the bother night but, I finally got hboot and the other baseband to flash, this after hours using a different memory card today.. Just decided to try the card from the other night and the PJ74img file fully flashed this time.. First try.. Just one of those try again until or works I suppose.. To a couple of tries with rumrunner too the the other day when I unlocked rooted. Thanks for yalls help... Trust me when I say I did research before asking for help, installing a nexus 7 second gen as my head unit.. Need phone for WiFi.. But I'll have 5.1 surround sound in my my truck .. Via audio splitter from the HDMI, run digital fiber to the surround sound decoder that has 6 rca out puts that runbto the amps .. Hell yeah! Pluss the HDMI audio extractor has an HDMI out.. So I can run extra screens or a projector to a personal drive in experience
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