Broken LTE after restoring stock firmware - E 2015 Q&A, Help & Troubleshooting

Hi guys,
First of all i think it's great how the development has progressed already. I can't wait until the CM 12.1 Build is ready for daily use.
Now the problem:
i tried CyanogenMod 12.1 and found battery life not good enough so i tried restoring my TWRP Backup. But every time it would give me error 255. So, i figured, ich hav to download a stock firmware. So i did download this one: http://www.filefactory.com/file/5vb..._LXI22.50-13_cid7_subsidy-DEFAULT_CFC.xml.zip . After waiting for my device to come back on and find cellular reception i've noticed that i am no longer able to get a LTE Signal. It is definatly available in my area, i typically get full bars. I am not necessarily dependent on LTE, but it would be nice to have. I've got the german Moto E 2015 4G LTE non Dual-SIM XT1524.
Thanks in Advance,
Benedikt

Did you ever get this fixed?

Related

[Q] Can't get LTE to work after flashing GPe ROM

I just recently flashed Dubbsy's Google Edition port, and everything is working spectacularly well except for LTE. I've read through all 60-something pages of his ROM Thread trying to make it work (following the instructions of the LTE on/off app to a tee), but I'm all out of ideas. Even worse, when I flashed the latest CM 10.1 nightly, I still had no LTE, just a 3G signal. Any ideas on how I can make LTE work again? I'm really hoping I don't have to start from scratch by flashing the stock firmare in ODIN.

[Q] Issues with radio firmware

Hi,
I have an issue with the radio of my phone. When I switch to 3G, I get a weak signal varying between one and a max of 3 bars. The phone gets heated up and the battery starts draining. Please find below the device and OS that I am using
Device: Samsung Galaxy S2
OS: CM M12
Base band: I9100DDLP8
Location: Bangalore, India
I have inserted my Sim in a different phone and have found that nothing is wrong with the connectivity in the area. I have no issues when I switch to 2G. I have tried flashing various modems and RILs but in vain. I have also tried using the Getril app to correct the issue but without much success.
Here is what I have tried and noticed
1) Flashed the modem DDLS9 and DDLPB. The 3G signal strength is good when I flashed these modems but I am unable to make or receive calls. I have flashed the RIL along with the modem.
2) On trying the modems XXLS6, XXLS8, XXLS9 and XXKH3, nothing has changed and I still got the weak 3G signal though am able to make and receive calls.
I have also tried flashing a stock rom (Jelly bean) but the issue was still there.
Any help is much appreciated. Thanks in advance
As you have tried all the radios for the location already, I am not going to suggest you to do that.
However, I am interested in knowing when did the phone start showing signs of weak 3g signal? Did it happen one day suddenly or did you make any changes to software/hardware which might have triggered it?
banjara said:
As you have tried all the radios for the location already, I am not going to suggest you to do that.
However, I am interested in knowing when did the phone start showing signs of weak 3g signal? Did it happen one day suddenly or did you make any changes to software/hardware which might have triggered it?
Click to expand...
Click to collapse
It started happening after I switched to Cyanogenmod 11 M1. I was under an impression that the issue is with the connectivity until I tried my sim card on a different phone.
I will suggest you to flash the stock ROM or some other ROM.
Sent from my SM-G900H
banjara said:
I will suggest you to flash the stock ROM or some other ROM.
Sent from my SM-G900H
Click to expand...
Click to collapse
Tried installing the stock rom but it didn't work.
Number one thing I also say about modems and rils, never use getril. Are you trying to flash jelly bean stock rom? If you haven't yet, try flashing it as it will also flash the stock modem too. If yes, try finding older versions of the compatible baseband firmware (or modem) and try flashing it. (Yes, you can flash older modems that originated from ics or jellybean).

Yet another modem topic...

Hi there,
I've decided to describe my problem in order to get help, as long as I cannot handle it on my own.
So... I bought my CN version p780 almost in october 2014 on aliexpress and it was running pretty cool(beside little disturbances in phone calls quality, especially my microphone). Not sure, but I think the date of production is may or june 2014. In february appeared a problem with modem - my phone lost connection with both cards.
Since then I change ROM and modemfirmware in order to find a proper combination for me.
Some of firmwares work a little bit but only with low signal and outside of buildings. With one card only, the signal is low/mid inside buildings.
I live in Poland.
I prefer KitKat firmware if it is possible - recently I've installed baralajbi ROM.
Can any of you suggest any solution for me?
Sincelery,
kam1lek
kam1lek said:
Hi there,
I've decided to describe my problem in order to get help, as long as I cannot handle it on my own.
So... I bought my CN version p780 almost in october 2014 on aliexpress and it was running pretty cool(beside little disturbances in phone calls quality, especially my microphone). Not sure, but I think the date of production is may or june 2014. In february appeared a problem with modem - my phone lost connection with both cards.
Since then I change ROM and modemfirmware in order to find a proper combination for me.
Some of firmwares work a little bit but only with low signal and outside of buildings. With one card only, the signal is low/mid inside buildings.
I live in Poland.
I prefer KitKat firmware if it is possible - recently I've installed baralajbi ROM.
Can any of you suggest any solution for me?
Sincelery,
kam1lek
Click to expand...
Click to collapse
Hi. Flash one custom recovery like TWRP!
Go to post Ho about some modems.
Download from there Xakep modem!
Flash from TWRP.
If it is not working download another one and try again....
Good Luck.
stympy said:
Hi. Flash one custom recovery like TWRP!
Go to post Ho about some modems.
Download from there Xakep modem!
Flash from TWRP.
If it is not working download another one and try again....
Good Luck.
Click to expand...
Click to collapse
Actually, I tried all of modems that you suggested for KITKAT...
kam1lek said:
Actually, I tried all of modems that you suggested for KITKAT...
Click to expand...
Click to collapse
This could be a hardware problem...
Try a service store !

ZVA / ZV8 Modem Question

I'm running Stock Rooted ZV8, mostly I'm happy with it. I do however encounter some signal quality issues from time to time. So I have two questions for which I have been unable to locate an answer.
1. Are there any determinable differences between the modems? My biggest issue is the phone dropping to 3g when I'm in an area that Sprint reports should be a solid 4g area.
2. Is the the latest version backwards compatible? While I'm interested in the latest modem I'm quite happy with my current stock rom and setup and I really don't want to switch over.
Thanks in advance.
They're both lollipop. So you can flash both. I have flashable modem files in one of the stock rom threads.
I could see little difference, if any, between the two.

Downgrade to MIUI 8.0.3.0 global stable?

Hi guys
Just received my redmi note 4 three days ago, set it up and installed all my apps and it was good, the version on it was MIUI 8.0.3.0 Global Stable, but it was asking me to update to 8.0.4.0, so I did, and ever since I noticed that the phone gets more hot, battery drains faster than it used to on previous version, and what's even worse, is the signal, it keeps always switching between 4G and 3G even if the signal coverage in my location is good (had the galaxy s7 before and it never did this), even on MIUI 8.0.3.0 it was a stable 4G all the time. So I performed a factory reset and started fresh, battery and heat are now good but I still have the bad signal issue. So I figured that I should downgrade to MIUI 8.0.3.0 and wait for 8.2 hoping that it won't have this issue. The question is how can I do that? Can I use the standard method of flashing using SP Flash Tool found here? http://en.miui.com/thread-370620-1-1.html
If you have any other solutions, please advise
Thank you!
Silvers91 said:
Hi guys
Just received my redmi note 4 three days ago, set it up and installed all my apps and it was good, the version on it was MIUI 8.0.3.0 Global Stable, but it was asking me to update to 8.0.4.0, so I did, and ever since I noticed that the phone gets more hot, battery drains faster than it used to on previous version, and what's even worse, is the signal, it keeps always switching between 4G and 3G even if the signal coverage in my location is good (had the galaxy s7 before and it never did this), even on MIUI 8.0.3.0 it was a stable 4G all the time. So I performed a factory reset and started fresh, battery and heat are now good but I still have the bad signal issue. So I figured that I should downgrade to MIUI 8.0.3.0 and wait for 8.2 hoping that it won't have this issue. The question is how can I do that? Can I use the standard method of flashing using SP Flash Tool found here? http://en.miui.com/thread-370620-1-1.html
If you have any other solutions, please advise
Thank you!
Click to expand...
Click to collapse
Hello there!
You can use the method that you linked without any problem. SPFlashTool does not check for current firmware version so you can do a downgrade just fine. Make sure to follow the exact steps in MIUI Forums especially where it says wich files/images to flash to your device. Otherwise you may brick your Note 4.
If you are interested you could also try a custom ROM wich will give you a smoother and less buggy device. But you will need a bootloader unlock for that to work.
silvershadow666 said:
Hello there!
You can use the method that you linked without any problem. SPFlashTool does not check for current firmware version so you can do a downgrade just fine. Make sure to follow the exact steps in MIUI Forums especially where it says wich files/images to flash to your device. Otherwise you may brick your Note 4.
If you are interested you could also try a custom ROM wich will give you a smoother and less buggy device. But you will need a bootloader unlock for that to work.
Click to expand...
Click to collapse
Thanks
I've already downgraded, unlocked my bootloader and tried a couple of custom ROMs including Epic ROM and multirom, but I didn't like them very much, they had too many buys and the development for them is not very good.. Could you suggest a good custom ROM that isn't as buggy and has a good battery life? I'd appreciate it if you could.
Silvers91 said:
Thanks
I've already downgraded, unlocked my bootloader and tried a couple of custom ROMs including Epic ROM and multirom, but I didn't like them very much, they had too many buys and the development for them is not very good.. Could you suggest a good custom ROM that isn't as buggy and has a good battery life? I'd appreciate it if you could.
Click to expand...
Click to collapse
I only tested one ROM yet and that would be that one linked here!
It works just fine at the moment. I have had it for 4 days now. I would also suggest flashing Magisk 11 or suhide.
There currently is a Bug with the middle Softkey wich is assigned to multitasking view and the google search at once. Someone has posted a fix for that wich i cant find currently because it was posted in MIUI forums and the user was banned. You can always try to swap the Softkeys yourself with an xposed module or a root app.
:silly:
silvershadow666 said:
I only tested one ROM yet and that would be that one linked here!
It works just fine at the moment. I have had it for 4 days now. I would also suggest flashing Magisk 11 or suhide.
There currently is a Bug with the middle Softkey wich is assigned to multitasking view and the google search at once. Someone has posted a fix for that wich i cant find currently because it was posted in MIUI forums and the user was banned. You can always try to swap the Softkeys yourself with an xposed module or a root app.
:silly:
Click to expand...
Click to collapse
Tried this one before, it was good enough, and I was able to swap the buttons using Gravitybox.. I just flashed latest epic ROM yesterday and so far so good.. But I'll surely change it again in a few days (I love re-flashing ROMs)
Thanks
fastboot link miui8.0.3.0 redmi note 4 snapdragon
bro , do you have the fastboot link miui8.0.3.0 for redmi note 4 snapdragon version?

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