[Xiaomi Redmi 3 Guides, News, & Discussion] Rizal Lovins:
HOW TO FIX 4G LTE OPTION USING SOLUTION 2 (WORK ON ODEXED AND DEODEXED ROM)

2. Edit TeleSevices.apk

Requirements :

- Apktool

- I will not explain how to decompile recompile apk MIUI ROM (Search Guide on Google to decompile apk MIUI ROM, Google is your friend)

Step by Step

1. Decompile TeleServices.apk

2. Go to res/xml and edit all files below :

3. Replace all code in all files with this

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen android:title="@string/preferred_network_type_title" android:key="network_type_list_gsm_umts"
xmlns:android="http://schemas.android.com/apk/res/android">
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_0" android:key="0" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_1" android:key="1" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_2" android:key="2" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_5" android:key="5" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_8" android:key="8" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_9" android:key="9" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_10" android:key="10" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_11" android:key="11" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_12" android:key="12" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_14" android:key="14" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_15" android:key="15" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_16" android:key="16" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_17" android:key="17" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_18" android:key="18" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_19" android:key="19" />
<miui.preference.RadioButtonPreference android:title="@string/lovins_preferred_network_mode_20" android:key="20" />
</PreferenceScreen>

save all files.

4. Go to res/value and open strings.xml

Add this code

<string name="lovins_preferred_network_mode_0">Prefer 3G/2G</string>
<string name="lovins_preferred_network_mode_1">2G only</string>
<string name="lovins_preferred_network_mode_2">3G only</string>
<string name="lovins_preferred_network_mode_5">CDMA only</string>
<string name="lovins_preferred_network_mode_8">Prefer 4G/CDMA</string>
<string name="lovins_preferred_network_mode_9">Prefer 4G/2G</string>
<string name="lovins_preferred_network_mode_10">Global</string>
<string name="lovins_preferred_network_mode_11">4G only</string>
<string name="lovins_preferred_network_mode_12">Prefer 4G/3G</string>
<string name="lovins_preferred_network_mode_14">3G only (TD-SCDMA)</string>
<string name="lovins_preferred_network_mode_15">4G only (TD-SCDMA)</string>
<string name="lovins_preferred_network_mode_16">2G only (TD-SCDMA)</string>
<string name="lovins_preferred_network_mode_17">Prefer 4G/2G (TD-SCDMA)</string>
<string name="lovins_preferred_network_mode_18">Prefer 3G/2G (TD-SCDMA)</string>
<string name="lovins_preferred_network_mode_19">Prefer 4G/3G (TD-SCDMA)</string>
<string name="lovins_preferred_network_mode_20">Prefer 4G/3G/2G (TD-SCDMA)</string>

save file.

5. Compile TeleServices also Sign and ZipAlign

6. Flash To your MIUI ROM, (If your ROM odexed just remove TeleServices.odex)

7. Done

Credits for reference : Indra Binuners