Hey all,
I've been a long time user of Cyanogenmod and custom ROMs in general - usually just for the purpose of removing bloatware. I don't consider myself a newbie by any means, but of course, sometimes I get ahead of myself. Recently, I upgraded from my CM9 Optimus S to CM7 HTC Evo 4g. I've never been interested in 4g myself, as I'm usually always at home, at a friend's, or at work where I always have WiFi.
During a test run of CM9 on the Evo, my RSA certificate for the WiMAX became corrupt and thus, I'm not able to use my 4g. Since then, I've reverted back to CM7 (no FFC killed me), and noticed that my 4g was stuck in an 'On - Searching' mode, which just slaughtered my poor battery (4ish hours, in pocket tops). I searched high and low, but of course, my backups from recovery don't contain the wimax.img required to restore the partition and thus have lost my keys forever. Sad times, considering I just got the phone a week ago. =[
For what I've been reading, its assumed that RSA certs are device unique and that chances are, flashing another person's wimax.img wouldn't even work. Due to my desperation to at least get the 4g radio turned off, I found a wimax.img from a friend's Evo that I rooted/flashed for him about a year ago. I flash_image'd it to the wimax partition, no modification of the MAC, certs, or anything within the .img, and next thing I see is the 4g connect instantly, and here's the kicker, with full internet access.
So here's my questions -- This friend always has his 4g on, literally 24/7. Since he was most likely connected at the same time I was able to, does this mean that both of us theoretically can use 4g at the same time using the same wimax image?
Secondly, and more importantly -- I know the companies hate to hear about people jailbreaking/rooting their phones so I'd hate to call Sprint, but could using his radio image, even just to be able to turn mine off, cause any known issues within our contracts? I suppose since the radio is now off and its persistent through reboots, I could wipe the /wimax partition, but if it should ever get turned on again, I would just be right back where I'm at now.
Related
I got my EVO on launch day and promptly rooted it using Toast's Methods resulting in a fully nand unlocked rooted phone. Everything was just peachy until the incremental update came out. I was using a stock .6 ROM and when the update was launched I waited and used a Caulkin's 1.47 stock rooted ROM. I had never and did not at that point flash any radios/wimax updates.
Later that week, whitslack posted a radio/wimax update...I ran them both. The Wimax update took all of 20 seconds to write...it didn't seem like it did anything because of how quickly it wrote. I DID NOT live in a 4G area, so it was not possible for me to test.
I then started reading about how so many people's 4G was broke by different ways and became a little to addicted to the forums and it got to the point where my bar exam (life truly sucks) preparation started to suffer, so I ran the Sprint RUU and restored my phone to stock so it wouldn't serve as a distraction.
Once in stock I ran both OTAs and am now at stock, non-rooted 1.47. I still had no idea if my 4G worked or not.
When I open up my wimax_mtd everything is completely wrong...everything is broken, doesn't work...my DEV MAC says it is "%s". However, when I turned my 4G on my mac address under hardware information in settings matches the one on the back of my battery, even though it sits at scanning all day since there is no 4G service in my area.
So today I entered into 2 different 4G areas for the first time and my wimax connects fine and stays connected....
If everything is so screwed up on my wimax_mtd...why and how does my 4G still work? is wimax_mtd a root file that is still left on my phone?
I am currently tethering over a 4g connection, and my internet is working fine, BUT I have a complete LOS for the cell signal. I think this could be a very important fact because we should be able to know some things by the fact that WiMax is working while the cell signal is altogether lost.
Hopefully, with this info, a solution is a little closer at hand.
Ok...when people say LOS do they mean Loss Of Service? Or Loss Of Signal?
Because if its the latter, that sht aint that bad. But if its the former...I'm glad I don't have it.
ms79723 said:
Ok...when people say LOS do they mean Loss Of Service? Or Loss Of Signal?
Because if its the latter, that sht aint that bad. But if its the former...I'm glad I don't have it.
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Click to collapse
It is bad. People that get it have to reboot phone for it to come back and it kills battery life. Nit to mention missed calls and texts. It is a complete loss of service.
Sent From My Evo Killer!!!
Its 2 separate radios..
I had pandora going over 4g earlier for hours...but lost signal with a crossed out circle after about an hour. Pandora kept going but u couldn't make a phone call, ths.falls in line with the other poster. Im running eg30plus over latest 2.1 midnight.
Sent from my SPH-D710 using xda premium
As WhiteWidows stated, it's 2 different radios. The LOS people have posted over and over about is the ability to make/receive calls (which is what the OP posted about). The Wimax radio (4G) doesn't transmit phone calls. That's why you can do data on 4G and still make a call at the same time.
.....
Hi guys, this is one of my first posts but I've been a long time reader coming from the Evo 4G forums. I'm rooter using Zedomax v3 and experienced multiple LOS as well.
Last night I tried limiting the clock speed to 1ghz and setting the min at 400mhz. Strangly I now get slightly better reception and never had a LOS yet. Will continue to test out this theory and see if it's clock speed related.
I came about testing this since I ran mine at 1.6 for a while and not only would I get more LOS occurances, I would also get phone freezes lol. I tether and stream music a lot so wanted to keep it slightly underclocked to keep the temps down. Hope this helps as a temporary band aid for the LOS bug
It definitely makes sense that the two radios are separate...the point of my post was just to offer some more information to help figure out a fix.
If one radio fails while the other stays working, do we know that the problem is phone-related? Many posters have speculated that the issue may be on Sprint's end, so I wasn't sure if this info did anything to challenge or support that theory. Maybe it does nothing, though -- just throwing it out there!
Someone posted a log cat of a LOS. There's still some coding in the radio files that thinks there is a sim card. Says sim disconnected and result radio off
sent from my DAMN ET4G!!!!
Hopefully a solution is found soon, I've seen similar issues posted on various android forums. Androidforums, Sprint community and here. Wish I waited a bit to hear more user experiences....
Success100 said:
Someone posted a log cat of a LOS. There's still some coding in the radio files that thinks there is a sim card. Says sim disconnected and result radio off
sent from my DAMN ET4G!!!!
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Click to collapse
Has anyone tried editing the build prop to manually change the preferred network from wcdma to CDMA auto? Maybe that'd fix that issue
I have been on my current SGS2 stock out of the box for over a week now and have not had any LOS issues, or missing texts, or data not working, or missing phone calls, etc.....
I have been using wi-fi, 4G, 3G, have an Airaive, went to an area where there is no Sprint service and phone roamed fine and then went back to Sprint service when available.
I have been unable to replicate the LOS issue on my current phone through all possible ways of using it.
My first SGS2 was also fine until I rooted it which then gave me an LOS within 12 hours of doing so.
If someone has a another sure way to get an LOS, I am willing to try it on my stock, never rooted phone but I don't think there are any other situations I can try that I haven't already......
Time.I have went 3 days without a los then 2 in same day.It is all random
I have been getting A LOT more Lost Signal Events on my Nexus. So many that I installed No Signal Alert on my phone to track them. It's been happening like 3 - 5 times an hour. So far I've noticed it's only when I'm on 4G, and most common when I am at home (even though I have full signal strength when I do have signal).
Like I said, it was getting pretty common, dropping out on phone calls and what-not. So I reflashed to AOKP 33 and updated kernels to franco's Milestone 3 thinking this might fix the problem.
But, alas, it did not. Still have the same problems. Happening WAY too often. Is this a hardware issue? Think I can swap it out with Verizon? I've read around and people seem to still have the problem even after swapping out. I mean, it's a PHONE first and foremost. So if I can't use it as a phone, what's the point? I REEEEAALY don't want to trade a completely different device, but it looks like I might have to. I mean, the Nexus was supposed to be first in lines for updates, right? It looks like Verizon is crippling that and now the network issues? What's the point?
I have the same issues. I read that turning off 4g and using 3g fixes the issue.
just gotta wait for verizon to fix it zzz
edit** ok with 3g it just crashed so nvm.
im gonna get a replacement i guess
I wouldn't hold my breath for Verizon to fix it. This phone's been out for months and they haven't done anything to address it.
I thought about turning off 4G but am honestly not sure how to to that without disabling all data. Plus it sort of defeats the purpose.
What do I do, just select CDMA as the network of choice rather than 4G/CDMA?
Sent from my Galaxy Nexus using XDA
Hey guys, I just bought a replacement Epic Touch 4G off of eBay after my old one ate itself.
I spent about 9 hours screwing around with the thing, and eventually was able to get voice and eventually 3G working. The MSL code was different from the one the (very frustrated) Sprint customer rep expected (only found this out afterward, using the getprop trick in the shell), which was interesting.
Anyway, I've been on an interesting journey with this thing. I'm completely comfortable with hard technical stuff, but the behind the scenes goings on behind cell phones is outside my usual domain. However, most of the kinks I was experiencing initially, seem to be smoothed out now.
But one thing is still killing me. My signal has been positively abysmal. I was having trouble updating the PRL the official way, so I learned how to use QPST to do it. At first, I threw a corporate PRL in there. No change. Then I changed to 25014 (the latest?), but still extremely poor performance. Additionally, most of the time, data is connecting at 1x. Once in a while I'll see 3G connect, but it's rare.
I'm looking for any suggestions on what to tweak, or -- better -- for a list of expected values for the #-code screens, so I can ensure they're correct. I'm not sure who had this phone originally, or what they did to it.
Much thanks, and if there's anything I can add to this to help, let me know!
fortyseven203 said:
Hey guys, I just bought a replacement Epic Touch 4G off of eBay after my old one ate itself.
I spent about 9 hours screwing around with the thing, and eventually was able to get voice and eventually 3G working. The MSL code was different from the one the (very frustrated) Sprint customer rep expected (only found this out afterward, using the getprop trick in the shell), which was interesting.
Anyway, I've been on an interesting journey with this thing. I'm completely comfortable with hard technical stuff, but the behind the scenes goings on behind cell phones is outside my usual domain. However, most of the kinks I was experiencing initially, seem to be smoothed out now.
But one thing is still killing me. My signal has been positively abysmal. I was having trouble updating the PRL the official way, so I learned how to use QPST to do it. At first, I threw a corporate PRL in there. No change. Then I changed to 25014 (the latest?), but still extremely poor performance. Additionally, most of the time, data is connecting at 1x. Once in a while I'll see 3G connect, but it's rare.
I'm looking for any suggestions on what to tweak, or -- better -- for a list of expected values for the #-code screens, so I can ensure they're correct. I'm not sure who had this phone originally, or what they did to it.
Much thanks, and if there's anything I can add to this to help, let me know!
Click to expand...
Click to collapse
Have you flashed stock jb rom and updated modem, then prl, then profile, reboot, profit?
Sent from my SPH-D710 using xda premium
I could use some advice as to what to do next with my LG G2…
Battery life on the G2 was always exceptional since day one, and I could count on some pretty decent 4G LTE coverage. When KitKat came down, it seems to get even better. I could run ALL my radios (voice, data, WiFi, BlueTooth, and Location ) simultaneously, never have to check my power settings, and easily get 18-26 hours at the low end, and up to 37 hours on a single charge, at the high end. Even with my Pebble Smartwatch receiving updates all day.
Then Sprint visited the Spark update upon us, and it has been downhill ever since. In my home area alone, there are 3 totally different towers. One 3G, one 4g LTE and one Spark tower, and none talk to each other. My entire city has gone from some notable 4g LTE coverage to VERY sparse LTE coverage (mostly 3g or nothing). My battery life is only good if I turn all my radios off, and any time I am actively using my device, I am burning power at a seemingly exponential rate. Now my battery life is down to 13-15 hours on a single charge. Maybe 16 at the high end.
And, to add insult to injury, mine is one of the devices that has lost the knock on function as a result of the Spark update.
So, my questions are this…
I have heard I can use my MSL to turn off two of the frequencies and restore my OLD LTE capability, to maybe improve my service. Is this true?
What is the current way to get the MSL? Sprint has flat out refused to give it to me.
Since a key LG function (knock on) is gone, I’m not sure I care if I keep the rest. Are there other ROMS worth considering?
Do any of them improve battery life, voice and data connectivity or both?
Do any of them allow for a “Roam Only” option, as used to exist with Sprint phones, moons ago? I could at least count on better voice if I roamed on Verizon. And, frankly, if they dumped me for it, that would be no big deal.
I am currently running stock, unrooted. Is there REALLY a built in root counter that tells LG how many times I have rooted, so my warranty gets voided?
If it’s safe to root, what are the best, easiest methods? And, again, what ROMs work best with the G2?
Thanks to all for your time and patience.
I guess I'm one of the lucky ones. I am stock unrooted latest update with spark and easily get 30+ bat life. Today I got my longest at 50 hours with 5 hour screen time.
And there are other ways to get msl something like http://forum.xda-developers.com/showthread.php?t=2521276
But yea I hear disabling the two frequencies have helped some people so I would say try it.
Sent from my LG-LS980 using XDA Free mobile app
sharkboy0901 said:
I guess I'm one of the lucky ones. I am stock unrooted latest update with spark and easily get 30+ bat life. Today I got my longest at 50 hours with 5 hour screen time.
And there are other ways to get msl something like http://forum.xda-developers.com/showthread.php?t=2521276
But yea I hear disabling the two frequencies have helped some people so I would say try it.
Sent from my LG-LS980 using XDA Free mobile app
Click to expand...
Click to collapse
Thanks for your reply, and I really wish I was still in that boat. Unfortunately, the standard "## whatever#" option doesn't work at all with the Sprint G2 running KitKat and Spark. I will have to try the tethered option, but I have to wait to use my wife's work laptop because I have a Mac.
VERY frustrating that there isn't just a new code I could just key in.
Will keep trying,
.....
wish i had an answer for you, i am updated to latest radio rooted and my average speed tests are good 25-30 whenever i run it. i have heard a lot of people saying the spark update ruined there phone
just so you know, you can be on a voice call and use your data at the same time UNLESS your connected to wifi also. This has always been the case since day 1 for ANY TRIBAND phone with sprint.
I am not sure about a root counter. I will say it was deliciously easy to root my stock ZVC phone. The method I used took all of 2 minutes literally.
First I downloaded towelroot ( https://towelroot.com/ ) to my phone. Installed and ran.
Boom. Now I had root. Installed SuperSU from the play store to manage root permissions. Then got autoprime's autorec from http://forum.xda-developers.com/showthread.php?t=2715496 installed that to phone and boom had twrp recovery. Made a backup of my stock rooted system did an advanced wipe of everything but internal storage...installed the ZV8 radio and then CM11. knock on even works, and mine WAS broken as well
Sent from my LG-LS980
As far as getting your MSL is concerned, if you have an old phone kicking around (or even just an old MEID) head over to sprint.com/activate and switch the line to that MEID, then activate your G2 again. When you go through their online activation procedure, they automatically give you your MSL, Phone #, ICCID, MEID, etc. on the confirmation page and on the email they send you. If you need an MEID I have one off my old Google Nexus S that drowned last month.
Did you disabling the other radios? Can you provide an update and let me know if it did improve the battery life?