Have a problem in setting preferred network type after reboot - Meizu Pro 5 Questions & Answers

Dear everyone,
I'm now using RR-7.1.1 rom and it's fantastic. But now I've found one problem.
The original setting of preferred network type is WCDMA preferred. Then I changed to LTE/UMTS auto (PRL).
But once I restart the phone, the setting just went back to WCDMA and I have to change it again.
Do anyone have good ways to lock the setting ?
Thanks.

this works on both single and dual sim and the settings will "stick" after reboot... requires root
https://forum.xda-developers.com/galaxy-s4-sprint/general/how-to-fix-network-signal-gsm-sim-t3720534

Related

wcdma preferred. ..??

Had a Droid for awhile and could allways change between cdma and Evdo but with my fascinate it is set to wcdma preferred and will not change...??
check this thread. http://forum.xda-developers.com/showthread.php?t=794551
ya i know how to get to the settings but i can choose cdma/auto prl but it wont stick.
Is there an answer for this?
Stock Fascinate, looking to resolve a high Time Without Signal (50%). I'd like to try changing from WCDMA Preferred to CDMA Auto (PRL). I'm aware of the setting under the debug/test menu (*#4636*1111#, then under Phone information > Set preferred network type), but the setting doesn't stick.
If i leave the settings page w/ the Home button, checking the setting shows that it has changed to "Unknown" and seems to stay that way if I exit in that manner.
If I exit the page using the back button, the setting reverts to WCDMA Preferred.
Is there a way to make the setting stick?
keeena said:
Is there an answer for this?
Stock Fascinate, looking to resolve a high Time Without Signal (50%). I'd like to try changing from WCDMA Preferred to CDMA Auto (PRL). I'm aware of the setting under the debug/test menu (*#4636*1111#, then under Phone information > Set preferred network type), but the setting doesn't stick.
If i leave the settings page w/ the Home button, checking the setting shows that it has changed to "Unknown" and seems to stay that way if I exit in that manner.
If I exit the page using the back button, the setting reverts to WCDMA Preferred.
Is there a way to make the setting stick?
Click to expand...
Click to collapse
If you have any luck figuring this out let me know! I am having similar issues with a high Time Without Signal.
I was just looking at this today and have the same question. Also will this help me force roam to sprint, my coworkers get 5 bars on a Epic and about 100kb down. im geting like 1 bar and about 10kb, i have tried roam control with not a lot of luck.

Concerning the *#*#4636#*#* menu

I tried messing around with the options in the *#*#4636#*#* keypad menu to help improve battery life, I read that changing options under "phone info" in the "set preferred network type" can help that regard, but I wanna change it back to the default. Anyone know what it is? Here is what I can choose:
- WCDMA preferred
- GSM only
- WCDMA only
- GSM auto (PRL)
- CDMA auto (PRL)
- CDMA only
- EvDo only
- GSM/CDMA auto (PRL)
- Unknown
I think it's the one that's bolded but I could be wrong. If anyone that hasn't manipulated these settings could enter the command in their keypad and tell me what they have, or their opinions about these settings I'd really appreciate it.
Default is WCDMA preferred.
so does anyone know which options to use?
ie for different countries and different regions..
on my HD2 it is "WCDMA preferred"
gsm auto (PRL)
If you choose gsm auto (prl) it will still use all networks but have less data drops and use less battery.

Disable 2G/GSM

Hello,
I have been trying hard to find a way to disable 2G on my MIUI Rom. The problem is that the "WCDMA Only" option is not available in the JB MIUI rom and I do not want to let my phone to to 2g as its roaming (in Canada, the AWS providers don't have 2G overlay)
I Have tried the *#*#4636*#*# method but it reset s to "WCDMA preferred" after a reboot.
I have also tried to modify the build.prop but it did not take effect. (Set ro.telephony.default_network=2)
Anyone have any ideas to stop the phone from going to 2G for good?
3p4145 said:
Hello,
I have been trying hard to find a way to disable 2G on my MIUI Rom. The problem is that the "WCDMA Only" option is not available in the JB MIUI rom and I do not want to let my phone to to 2g as its roaming (in Canada, the AWS providers don't have 2G overlay)
I Have tried the *#*#4636*#*# method but it reset s to "WCDMA preferred" after a reboot.
I have also tried to modify the build.prop but it did not take effect. (Set ro.telephony.default_network=2 )
Anyone have any ideas to stop the phone from going to 2G for good?
Click to expand...
Click to collapse
ro.telephony.default_network=2
That is the correct line for setting WCDMA only. If that didn't work, then....?
i9505 LTE/WCDMA Only (autoconnect), possible?
I'm not sure if someone already did this but, is it possible to totally disable GSM and let LTE/WCDMA auto-connect?
I'm using i9505 and GSM is included in the LTE auto connect option on the network types.
Hope there is LTE/WCDMA Only (autoconnect) option.

Network mode changes to default after reset LG-H870DS

Hello
The problem i have is for the Dual SIM version (HongKong).
Every tyme the phone is restarted the Prefered network mode is reset back to default mode : GSM/WCDMA auto
The options I have are:
GSM/WCDMA/LTE auto
GSM/WCDMA auto
WCDMA only
GSM only
Has anyone else experienced this and would you know where is the best place to report this to LG?
thank you!
I'm experiencing the same issue when using on T-Mobile. I've even modified my APN settings to match TMO GS8, small change in APN type.
I submitted feedback to LG HK, https://www.lg.com/hk_en/support/contact/chat-email/email
I can confirm this behavior is the same on my H990DS that I'm running on the telus network in Canada. Every time the phone is restarted it always defaults back to "GSM/WCDMA auto" instead of "GSM/WCDMA/LTE auto"
I wrote LG support in canada and they told me they couldn't help me because it's an international phone. And that it was probably a problem with my APN settings (what a pathetic cop out canned response). There is obviously nothing wrong with the APN settings, as it has no problem grabbing an LTE signal when I set the preferred network mode to "GSM/WCDMA/LTE auto"
The issue, is that the phone resets it's preferred network mode to "GSM/WCDMA auto" every restart. As seeing that other people are experiencing this same issue in completely different carriers pretty much says that this is problem with the phone .
Has anyone found a solution?
I have the very same issue, i the past I have used an app that I could force a 1x rtt connection on a cdma phone, the app itself used the advanced phone menu to do this, but a lot of these app don't work anymore and haven't since kitkat, but I don't suppose it'll hurt to try, the one I used for my cdma phone was for the HTC thunderbolt, had a gray or black round icon with a little red lighting bolt.

Elephone S7 won't connect to 3G

I had an Elephone S7 in perfect condition which I then lent to a friend. He couldn't get it to work on O2 UK so he fiddled with the *#*#4636#*#* function and accidentally changed the radio system to LTE/UMTS auto (PRL). Although it sees the SIM it won't enable Mobile data, calls or SMS messages. I'm trying to reset it to GSM auto (PRL) which I believe to be the correct setting, but on restart it resets to LTE/UMTS auto (PRL). I have tried factory reset but no change. Any suggestions?
Regards
Andrew

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