Cara Lock Jaringan 3G (Field Test)

>     [How to] Force/ Lock 3G only on Windows Phone 8.1 Preview for Developers How to Force/ Lock 3G only on  Windows Phone 8.1 Preview for Developers Hey All,  here I just want to share how my Lumia 820 can force 3G Only on \Windows Phone 8.1 Preview for Developers, I found this on   RM825_3051.40000.1347.1001_RETAIL_apac_vietnam_220 _01_358835_prd_signed.ffu (Vietnam)   I compare with my Stock Firmware   RM825_3051.40000.1347.1004_RETAIL_apac_indonesia_2 83_04_367265_prd_signed.ffu (Indonesia)   So I flash that Firmware and I can Dial ##3282 ##3282#, update to Windows Phone 8.1 Preview for Developers and still get that Dial Captured from ProjectMyScreen Lumia 820 :   HOW TO Flash Vietnam's Firmware / Step : Flash your Lumia to Vietnam's Firmware   Download and Instal Nokia Care Suite if you haven't, check the digital signature if you failed install, the digital signature must be OK Open Nokia Care Suite and select/double click Product Support Tool for Store   SIGN IN   Go to Tools >> Firmware Download   Type your Vietnam Product Code (list in below) then Check Online or press Enter and Download   Vietnam Product Code List:   Code: Lumia 520 059S357 RM-914 VAR VN CV Lumia 525 059V486 RM-998 VAR APAC VN CV Lumia 620 059R2C9 RM-846 VAR VN CV Lumia 625 059T4N6 RM-943 VAR APAC VN CV Lumia 720 059S380 RM-885 VAR APAC VN CV WHITE 059S362 RM-885 VAR APAC VN CV CYAN 059S363 RM-885 VAR APAC VN CV RED 059S361 RM-885 VAR APAC VN CV YELLOW 059S360 RM-885 VAR APAC VN CV BLACK Lumia 820 059Q998 RM-825 VAR APAC VN CV Lumia 920 059Q8Z9 RM-821 VAR APAC VN CV BLACK 059Q8Z8 RM-821 VAR APAC VN CV GREY 059Q902 RM-821 VAR APAC VN CV RED 059Q901 RM-821 VAR APAC VN CV YELLOW 059Q900 RM-821 VAR APAC VN CV WHITE Lumia 925 059S6W4 RM-910 VAR VN CV BLACK 059S6Z1 RM-910 VAR VN CV GREY 059S6Z0 RM-910 VAR VN CV WHTE Lumia 1020 059T4P9 RM-875 VAR APAC VN CV BLACK 059T4Q0 RM-875 VAR APAC VN CV WHITE 059T4Q2 RM-875 VAR APAC VN CV YELLOW Lumia 1320 059V569 RM-996 VAR APAC VN CV Lumia 1520 059V317 RM-937 VAR APAC VN CV BLACK 059V319 RM-937 VAR APAC VN CV RED 059V318 RM-937 VAR APAC VN CV WHITE 059V320 RM-937 VAR APAC VN CV YELLOW Go to File >> Open Product   Type your Product >> Open   Go to Programming >> Recovery   Set to Work Offline   Start Flashing   Follow the instructions and retry   Flash completed   Update your Lumia to Windows Phone 8.1 Preview for Developers via Phone Update Finish!!! Hope It work to all Lumia with Windows Phone 8.1 Preview for Developers,  Tested and work fine on Lumia 820, if you use another Lumia Series please report here what Lumia you use and what Product Code you flash, thanks >>Optional<< : Before flashing, check your downloaded firmware on C:\ProgramData\Nokia\Packages\Products\rm-xxx\RMxxx_xxx.xxxxx.xxx.ffu, open this with WinHex and search (CTRL+F) type ##3282 press enter, if found that code you can enjoy that Dial DWYOR ! ! ! Here you can watch VIDEO from my Lumia 820 work fine with Field Test

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