WiFi Country Problem Solving for K2_U/K2_UL (Android 4.2.2)

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BrateloSlava

BrateloSlava

Senior Member
Sep 12, 2012
982
914
Kharkiv
Hello!

After buying this phone model, I was horrified to learn, that he does not want to connect to my wi-fi router in the 5 GHz range. :mad:

Full description of the problem and how to resolve it are described in this and this topics.

I have carefully read both topics and the following materials:
MccTable.java
Mobile country code
Dalvik opcodes

I tried all the proposed solutions and they are not quite like me. I decided to do everything a little bit differently.

telephony-common\smali\com\android\internal\telephony\MccTable.smali
OLD
Code: 
.method public static countryCodeForMcc(I)Ljava/lang/String;
    .locals 2
    .parameter "mcc"

    .prologue
    .line 124
    invoke-static {p0}, Lcom/android/internal/telephony/MccTable;->entryForMcc(I)Lcom/android/internal/telephony/MccTable$MccEntry;

    move-result-object v0

    .line 126
    .local v0, entry:Lcom/android/internal/telephony/MccTable$MccEntry;
    if-nez v0, :cond_0

    .line 127
    const-string v1, ""

    .line 129
    :goto_0
    return-object v1

    :cond_0
    iget-object v1, v0, Lcom/android/internal/telephony/MccTable$MccEntry;->iso:Ljava/lang/String;

    goto :goto_0
.end method
NEW
Code: 
.method public static countryCodeForMcc(I)Ljava/lang/String;
    .locals 2
    .parameter "mcc"

    .prologue
    .line 124
    invoke-static {p0}, Lcom/android/internal/telephony/MccTable;->entryForMcc(I)Lcom/android/internal/telephony/MccTable$MccEntry;

    move-result-object v0

    .line 126
    .local v0, entry:Lcom/android/internal/telephony/MccTable$MccEntry;
[COLOR="Red"]#    if-nez v0, :cond_0[/COLOR]

    .line 127
[COLOR="red"]    const-string v1, "us"[/COLOR]

    .line 129
    :goto_0
    return-object v1

    :cond_0
    iget-object v1, v0, Lcom/android/internal/telephony/MccTable$MccEntry;->iso:Ljava/lang/String;

    goto :goto_0
.end method

framework\smali\android\net\wifi\WifiStateMachine.smali
OLD
Code: 
.method private setCountryCode()V
    .locals 3

    .prologue
    .line 3780
    iget-object v1, p0, Landroid/net/wifi/WifiStateMachine;->mContext:Landroid/content/Context;

    invoke-virtual {v1}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

    move-result-object v1

    const-string/jumbo v2, "wifi_country_code"

    invoke-static {v1, v2}, Landroid/provider/Settings$Global;->getString(Landroid/content/ContentResolver;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    .line 3782
    .local v0, countryCode:Ljava/lang/String;
    if-eqz v0, :cond_0

    invoke-virtual {v0}, Ljava/lang/String;->isEmpty()Z

    move-result v1

    if-nez v1, :cond_0

    .line 3783
    const/4 v1, 0x0

    invoke-virtual {p0, v0, v1}, Landroid/net/wifi/WifiStateMachine;->setCountryCode(Ljava/lang/String;Z)V

    .line 3787
    :cond_0
    return-void
.end method
NEW
Code: 
.method private setCountryCode()V
    .locals 3

    .prologue
    .line 3780
    iget-object v1, p0, Landroid/net/wifi/WifiStateMachine;->mContext:Landroid/content/Context;

    invoke-virtual {v1}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

    move-result-object v1

    const-string/jumbo v2, "wifi_country_code"

    invoke-static {v1, v2}, Landroid/provider/Settings$Global;->getString(Landroid/content/ContentResolver;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    .line 3782
    .local v0, countryCode:Ljava/lang/String;
    if-eqz v0, :cond_0

    invoke-virtual {v0}, Ljava/lang/String;->isEmpty()Z

    move-result v1

    if-nez v1, :cond_0

    .line 3783
[COLOR="Red"]    const-string v0, "us"[/COLOR]
    
    const/4 v1, 0x0

    invoke-virtual {p0, v0, v1}, Landroid/net/wifi/WifiStateMachine;->setCountryCode(Ljava/lang/String;Z)V

    .line 3787
    :cond_0
    return-void
.end method

Result - archive for installation through TWRP:
- for 3G model (K2_U)
- for LTE model (K2_UL). If not work, try this

Try, check, write the results.

Enjoy!
 
Last edited:
  • Like
Reactions: birami, irishobo, dramon and 1 other person
BrateloSlava

BrateloSlava

Senior Member
Sep 12, 2012
982
914
Kharkiv
xpirt said:
Did you test it?
Click to expand...
Screenshot from my phone. Now.

LTE version tested radarga.

ADD.
LTE users. Please, try 3G version, if LTE version doesn't work.
 

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  • 4
    BrateloSlava
    BrateloSlava
    Hello!

    After buying this phone model, I was horrified to learn, that he does not want to connect to my wi-fi router in the 5 GHz range. :mad:

    Full description of the problem and how to resolve it are described in this and this topics.

    I have carefully read both topics and the following materials:
    MccTable.java
    Mobile country code
    Dalvik opcodes

    I tried all the proposed solutions and they are not quite like me. I decided to do everything a little bit differently.

    telephony-common\smali\com\android\internal\telephony\MccTable.smali
    OLD
    Code: 
    .method public static countryCodeForMcc(I)Ljava/lang/String;
    .locals 2
    .parameter "mcc"

    .prologue
    .line 124
    invoke-static {p0}, Lcom/android/internal/telephony/MccTable;->entryForMcc(I)Lcom/android/internal/telephony/MccTable$MccEntry;

    move-result-object v0

    .line 126
    .local v0, entry:Lcom/android/internal/telephony/MccTable$MccEntry;
    if-nez v0, :cond_0

    .line 127
    const-string v1, ""

    .line 129
    :goto_0
    return-object v1

    :cond_0
    iget-object v1, v0, Lcom/android/internal/telephony/MccTable$MccEntry;->iso:Ljava/lang/String;

    goto :goto_0
.end method
    NEW
    Code: 
    .method public static countryCodeForMcc(I)Ljava/lang/String;
    .locals 2
    .parameter "mcc"

    .prologue
    .line 124
    invoke-static {p0}, Lcom/android/internal/telephony/MccTable;->entryForMcc(I)Lcom/android/internal/telephony/MccTable$MccEntry;

    move-result-object v0

    .line 126
    .local v0, entry:Lcom/android/internal/telephony/MccTable$MccEntry;
[COLOR="Red"]#    if-nez v0, :cond_0[/COLOR]

    .line 127
[COLOR="red"]    const-string v1, "us"[/COLOR]

    .line 129
    :goto_0
    return-object v1

    :cond_0
    iget-object v1, v0, Lcom/android/internal/telephony/MccTable$MccEntry;->iso:Ljava/lang/String;

    goto :goto_0
.end method

    framework\smali\android\net\wifi\WifiStateMachine.smali
    OLD
    Code: 
    .method private setCountryCode()V
    .locals 3

    .prologue
    .line 3780
    iget-object v1, p0, Landroid/net/wifi/WifiStateMachine;->mContext:Landroid/content/Context;

    invoke-virtual {v1}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

    move-result-object v1

    const-string/jumbo v2, "wifi_country_code"

    invoke-static {v1, v2}, Landroid/provider/Settings$Global;->getString(Landroid/content/ContentResolver;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    .line 3782
    .local v0, countryCode:Ljava/lang/String;
    if-eqz v0, :cond_0

    invoke-virtual {v0}, Ljava/lang/String;->isEmpty()Z

    move-result v1

    if-nez v1, :cond_0

    .line 3783
    const/4 v1, 0x0

    invoke-virtual {p0, v0, v1}, Landroid/net/wifi/WifiStateMachine;->setCountryCode(Ljava/lang/String;Z)V

    .line 3787
    :cond_0
    return-void
.end method
    NEW
    Code: 
    .method private setCountryCode()V
    .locals 3

    .prologue
    .line 3780
    iget-object v1, p0, Landroid/net/wifi/WifiStateMachine;->mContext:Landroid/content/Context;

    invoke-virtual {v1}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

    move-result-object v1

    const-string/jumbo v2, "wifi_country_code"

    invoke-static {v1, v2}, Landroid/provider/Settings$Global;->getString(Landroid/content/ContentResolver;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    .line 3782
    .local v0, countryCode:Ljava/lang/String;
    if-eqz v0, :cond_0

    invoke-virtual {v0}, Ljava/lang/String;->isEmpty()Z

    move-result v1

    if-nez v1, :cond_0

    .line 3783
[COLOR="Red"]    const-string v0, "us"[/COLOR]
    
    const/4 v1, 0x0

    invoke-virtual {p0, v0, v1}, Landroid/net/wifi/WifiStateMachine;->setCountryCode(Ljava/lang/String;Z)V

    .line 3787
    :cond_0
    return-void
.end method

    Result - archive for installation through TWRP:
    - for 3G model (K2_U)
    - for LTE model (K2_UL). If not work, try this

    Try, check, write the results.

    Enjoy!
    View

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