ROK Mobile APN settings for vivo X21 UD
vivo X21 UD is compatible with ROK Mobile HSDPA and ROK Mobile LTE 50%.
ROK Mobile Internet & MMS APN settings
In your vivo X21 UD app drawer, go to Settings Connections Mobile networks Access Point Names
Add a new APN by pressing ADD on right top corner. If vivo X21 UD has already set values for ROK Mobile 2 for any fields below leave them. Change others as below.
Name: ROK Mobile 2
APN type: default,supl,mms,admin
APN protocol: IPv4
APN roaming protocol: IPv4
APN PPP phone number: Not set
Restart your vivo X21 UD to apply ROK Mobile 2 APN settings.
For vivo X21 UD, when you type ROK Mobile APN settings, make sure you enter APN settings in correct case. For example, if you are entering ROK Mobile Internet & MMS APN settings make sure you enter APN as wholesale and not as WHOLESALE or Wholesale.
vivo X21 UD compatibility with ROK Mobile
vivo X21 UD is compatible with below network frequencies of ROK Mobile.
|HSDPA||850 MHz, 1900 MHz|
|LTE||Band 2 1900 MHz, Band 5 850 MHz, Band 40 2300 MHz*|
Explain vivo X21 UD compatibility with ROK Mobile
ROK Mobile 3G APN with vivo X21 UD
vivo X21 UD supports ROK Mobile 3G on HSDPA 850 MHz and 1900 MHz.
ROK Mobile 4G LTE APN with vivo X21 UD
vivo X21 UD supports ROK Mobile 4G on LTE Band 2 1900 MHz, Band 5 850 MHz and Band 40 2300 MHz only in some areas of United States.
Overall compatibililty of vivo X21 UD with ROK Mobile is 67%. The compatibility of vivo X21 UD with ROK Mobile, or the ROK Mobile network support on vivo X21 UD we have explained here is only a technical specification match between vivo X21 UD and ROK Mobile network. Even vivo X21 UD is listed as compatible here, ROK Mobile network can still disallow (sometimes) vivo X21 UD in their network using IMEI ranges. Therefore, this only explains if ROK Mobile allows vivo X21 UD in their network, whether vivo X21 UD will work properly or not, in which bands vivo X21 UD will work on ROK Mobile and the network performance between ROK Mobile and vivo X21 UD. To check if vivo X21 UD is really allowed in ROK Mobile network please contact ROK Mobile support. Do not use this website to decide to buy vivo X21 UD to use on ROK Mobile.
vivo X21 UD network specifications
|OS||Android 8.1 (Oreo)|
|Network bands||GSM / CDMA / HSPA / LTE|
|Network frequencies||GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2|
HSDPA 850 / 900 / 1900 / 2100
LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
CDMA 800 & TD-SCDMA