Phone Model: Star B2000
MT6573 chipset
Enter code in phone dialer:
*#*#3646633#*#*
You get engineering mode.
Go to bottom of screen and select BANDMODE
I have several bands listed, but I can only select/deselect a few bands. The others are grayed out and I cannot select them.
Anyone know how i can select the other bands? I have terrible signal to the point i stand outside in downtown chicago and I loose signal!! I get a max of two bars anywhere i go.
Related
Saw this on the AT&T forums, not sure if it works though.
Originally Posted by BecomingxInsane
I found out that if you go into the dialer and type in *#*#197328640#*#* that it will take you into a menu that will allow you to change it. From the main menu of the ServiceMode screen, select DEBUG SCREEN, then PHONE CONTROL at the bottom, then UE STATE CONTROL. From there select CHANGE RAT TO WCDMA to enable 3G only, and select CHANGE RAT TO GSM for 2G only.
this doesnt do anything at all .
i live in an area with no 3g coverage.. despite att sending me emails stating its be "coming" since last summer. anyways...
I set the phone to 3g only mode and I still get signal
Hi everyone,
I have a strange problem with my Sensation. I'm not sure what spec it is.
Here is the issue.
When I go into *#*#4636#*#* -> Phone information -> Menu -> Select band
I have 3 options: EURO, AUTOMATIC (DEFAULT), USA
My provider uses 2100Mhz as 3G frequency. When I leave the setting at default i get very slow speed, less than 1Mbps if I switch it to EURO I get 6.5Mbps. Leaving it in EURO setting also kills all the 2G frequency except 900Mhz, so roaming in the USA was not possible. I had to switch the phone to USA, then it's no problem.
My question: Why can't I change the 3G band in the normal menu? Is there a way to do this? Or do I always have to go to the special menu?
Why leaving it at AUTOMATIC gets my so slow speed?
Hope someone can help.
Thanks!
I'm from Brazil and 3G signal from my carrier is really poor at my home.
So my phone keeps switching between frequencys every time and it causes instability on my signal.
I'd like to change my band to use only 850Mhz like I did in my old Samsung device in order to solve my problem, but when I type *#*#4636*#*# and go to Phone Info > Menu Button > Radio Band Selection there's no options to pick. Why? How to solve this?
Use an application called phone testing in the playstrore
KitKat slo"g" slide
Hey I recently purchased Pixel XL from store.google.com and had it shipped to California and took it to Shanghai, China. After inserting the china telecom sim card, i found that I can only make/receive phone calls but cannot connect to LTE network.
It is clear that the hardware does support the china telecome LTE network. I even find a small tutorial of switching to a mode where I can use LTE network but cannot make phone calls.
Dial *#*#4636#*#*
on the upper right cornor , choose United States
in the middle of the screen choose CDMA AUTO (PRL)
turn on Airplane mode and then off
Then I can find LTE signals.
But the phone cannot make phone calls under this mode.
I'm not sure if I can switch it back to make phone calls mode. And is it possible to solve this problem and make it able to receive phone calls and have LTE network at the same time? Tremendous thanks!! If I can provide any information, please guide me to find the information and I will happily provide!.
Have you tried LATE/CDMA/UMTS auto (PRL) mode?
I could imagine that this let's you use both, China mobile LATE (which obviously needs the CDMA mode) as well as UMTS as fallback for calls.
jzhuwalker said:
Hey I recently purchased Pixel XL from store.google.com and had it shipped to California and took it to Shanghai, China. After inserting the china telecom sim card, i found that I can only make/receive phone calls but cannot connect to LTE network.
It is clear that the hardware does support the china telecome LTE network. I even find a small tutorial of switching to a mode where I can use LTE network but cannot make phone calls.
Dial *#*#4636#*#*
on the upper right cornor , choose United States
in the middle of the screen choose CDMA AUTO (PRL)
turn on Airplane mode and then off
Then I can find LTE signals.
But the phone cannot make phone calls under this mode.
I'm not sure if I can switch it back to make phone calls mode. And is it possible to solve this problem and make it able to receive phone calls and have LTE network at the same time? Tremendous thanks!! If I can provide any information, please guide me to find the information and I will happily provide!.
Click to expand...
Click to collapse
Currently a file(carrier_policy.xml in the EFS partition of Pixel 2 series and probably Pixel 2016s) lacks proper configuration for China Telecom with its LTE network using SRLTE (which is a common practise of establishing the CDMA and LTE network at the same time).
Thus the team can and should fix it by:
Adding the following 2 strings(in red) to the carrier_policy.xml in the EFS partition as follows:
......
<!-- List of the MCCs in which SRLTE is allowed -->
<mcc_list name="sxlte_mccs"> 455 460 </mcc_list>
<!-- These are the serving system PLMNs for which SRLTE will be allowed
-->
<!-- NOTE: Proper functioning of the SRLTE policy requires that there
be an PLMN list named "sxlte_plmns". Do NOT rename this list.
-->
<plmn_list name = "sxlte_plmns">
455-02 455-07 460-03 460-11
</plmn_list>
......
------------------------------------------------------------------------------
Here is an example of misunderstanding similar to yours:
Yes, absoutely. Someone has cracked and got everything works well. Check this post:
https://tieba.baidu.com/p/5398167811
Until now I only had Qualcomm devices where this is easily possible with the network signal guru app out of the playstore. Now I also wanted to do the same thing for my friend because he lives in an area where LTE Band 3 (50Mbit/s throughput) and LTE Band 20 (5Mbit/s throughput) is available but the phone switches to Band 20 after around 5minutes of usage so after that you always need to put it in airplane mode and back again.
Is there a possibility to lock it to a specific band? I can‘t access the MTK engineer mode through all apps on the PlayStore (always get an error). The phone is rooted.