Hikaru Horie's Blog: 8月 2013

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この記事は以前の記事とほぼ同じですが，以下の点で異なります．

対象 OS：4.2.2 (CyanogenMod 10.1-20130526-NIGHTLY-m7) -> 4.3 (CyanogenMod 10.2-20130819-NIGHTLY-m7ul)

修正箇所の行数

注意：
システムの改変は端末を動作不能にする危険性があります（e.g., 文鎮化）．必ず自己責任でお願いします．

【症状】
HTC One (m7) に IIJmio のデータ専用 SIM（docomo MVNO）を挿した際，通信は可能だがアンテナピクトが常時ゼロになっており，セルスタンバイによる電池消耗が激しい．

【環境】

Android

Device: HTC One (m7) UK 版（SIM-free, bootloader-unlocked, rooted）
SIM: IIJmio 高速モバイル/D https://www.iijmio.jp/guide/outline/hdd/
Kernel: CyanogenMod 10.2-20130819-NIGHTLY-m7ul

Mother

OS: Windows8 Pro
ADB: 1.0.31
Java: 1.7.0_21 (64 bit)
smali/baksmali: v1.3.2 https://code.google.com/p/smali/downloads/list?can=1&q=&colspec=Filename+Summary+Uploaded+ReleaseDate+Size+DownloadCount

【解決方法】
流れは下記の通り．適当なディレクトリに端末から pull してきた telephony-common.jar を展開し，含まれる classes.dex をディスアセンブルする．電波状況に関連する部分を書き換えた上で再度 jar に固め，端末の元の場所に push する．

> mkdir workspace
> cd workspace
> adb pull /system/framework/telephony-common.jar
> mv telephony-common.jar telephony-common.orig.jar
> unzip telephony-common.jar
> 7za.exe e -so telephony-common.jar telephony-common\classes.dex > classes.dex.tmp
> java -jar baksmali.jar -x classes.dex.tmp -o out
(Modify: out\com\android\internal\telephony\gsm\GsmServiceStateTracker.smali)
> Java -jar Somali. jar -o classes.dex out
> zip telephony-common.jar META-INF classes.dex
> adb push telephony-common.jar /system/framework/telephony-common.jar
(Reboot into Recovery)
(Wipe cache partition and Dalvik cache)

下記コードの少し後にある定数値に関する記述を修正する．私の環境では GsmServiceStateTracker.smali の 4,000 行目周辺だった．

.method private regCodeToServiceState(I)I

Before	After
.line 1251 :pswitch_data_20 .packed-switch 0x0 :pswitch_1b :pswitch_1c :pswitch_1b :pswitch_1b :pswitch_1b :pswitch_1e :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_1b :pswitch_5 :pswitch_1b :pswitch_1b :pswitch_1b .end packed-switch	.line 1251 :pswitch_data_20 .packed-switch 0x0 :pswitch_1b :pswitch_1c :pswitch_1c // modified :pswitch_1c // modified :pswitch_1b :pswitch_1e :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_1b :pswitch_5 :pswitch_1c // modified :pswitch_1c // modified :pswitch_1b .end packed-switch

Before

After

    .line 1251
    :pswitch_data_20
    .packed-switch 0x0
        :pswitch_1b
        :pswitch_1c
        :pswitch_1b
        :pswitch_1b
        :pswitch_1b
        :pswitch_1e
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_1b
        :pswitch_5
        :pswitch_1b
        :pswitch_1b
        :pswitch_1b
    .end packed-switch

    .line 1251
    :pswitch_data_20
    .packed-switch 0x0
        :pswitch_1b
        :pswitch_1c
        :pswitch_1c // modified
        :pswitch_1c // modified
        :pswitch_1b
        :pswitch_1e
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_1b
        :pswitch_5
        :pswitch_1c // modified
        :pswitch_1c // modified
        :pswitch_1b
    .end packed-switch

【参考】

Android + b-mobile データ専用 SIM で電界強度を表示する http://bl.oov.ch/2012/01/b-mobile-sim.html
Android + データ専用 SIM での動作修正パッチ http://bl.oov.ch/2012/01/android-sim.html
Android 4.2.1 からの MVNO データ専用SIM http://bl.oov.ch/2012/12/android-421-mvno-sim.html

This post is almost same as previous one except for the below points.

Target OS：4.2.2 (CyanogenMod 10.1-20130526-NIGHTLY-m7) -> 4.3 (CyanogenMod 10.2-20130819-NIGHTLY-m7ul)

Line number of revised part

Attention：
Modifying system may cause system failures (e.g., Bricked). Please take full responsibility for your actions.

[symptoms]
Although HTC One (m7) with a Data-Only SIM can communicate over 3G well, it shows no signal and drains power.

[Environment]

Android

Device: HTC One (m7) UK edition（SIM-free, bootloader-unlocked, rooted）
SIM: IIJmio High-speed Mobile/D https://www.iijmio.jp/guide/outline/hdd/
Kernel: CyanogenMod 10.2-20130819-NIGHTLY-m7ul

Mother

OS: Windows8 Pro
ADB: 1.0.31
Java: 1.7.0_21 (64 bit)
smali/baksmali: v1.3.2 https://code.google.com/p/smali/downloads/list?can=1&q=&colspec=Filename+Summary+Uploaded+ReleaseDate+Size+DownloadCount

[solution]
Below methods. Pull "telephony-common.jar" from the device and put it into a working directory. Disassenmble "classes.dex" in the JAR file. Modified constants about radio status and re-assemble "classes.dex" and compress as a new JAR file. Push the JAR file into the device (overwrite).

> mkdir workspace
> cd workspace
> adb pull /system/framework/telephony-common.jar
> mv telephony-common.jar telephony-common.orig.jar
> unzip telephony-common.jar
> 7za.exe e -so telephony-common.jar telephony-common\classes.dex > classes.dex.tmp
> java -jar baksmali.jar -x classes.dex.tmp -o out
(Modify: out\com\android\internal\telephony\gsm\GsmServiceStateTracker.smali)
> java -jar smali.jar -o classes.dex out
> zip telephony-common.jar META-INF classes.dex
> adb push telephony-common.jar /system/framework/telephony-common.jar
(Reboot into Recovery)
(Wipe cache partition and Dalvik cache)

Modify constants after below code. In my environment, the code is around 4,000L of GsmServiceStateTracker.smali.

.method private regCodeToServiceState(I)I

Before	After
.line 1251 :pswitch_data_20 .packed-switch 0x0 :pswitch_1b :pswitch_1c :pswitch_1b :pswitch_1b :pswitch_1b :pswitch_1e :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_1b :pswitch_5 :pswitch_1b :pswitch_1b :pswitch_1b .end packed-switch	.line 1251 :pswitch_data_20 .packed-switch 0x0 :pswitch_1b :pswitch_1c :pswitch_1c // modified :pswitch_1c // modified :pswitch_1b :pswitch_1e :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_5 :pswitch_1b :pswitch_5 :pswitch_1c // modified :pswitch_1c // modified :pswitch_1b .end packed-switch

Before

After

    .line 1251
    :pswitch_data_20
    .packed-switch 0x0
        :pswitch_1b
        :pswitch_1c
        :pswitch_1b
        :pswitch_1b
        :pswitch_1b
        :pswitch_1e
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_1b
        :pswitch_5
        :pswitch_1b
        :pswitch_1b
        :pswitch_1b
    .end packed-switch

    .line 1251
    :pswitch_data_20
    .packed-switch 0x0
        :pswitch_1b
        :pswitch_1c
        :pswitch_1c // modified
        :pswitch_1c // modified
        :pswitch_1b
        :pswitch_1e
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_5
        :pswitch_1b
        :pswitch_5
        :pswitch_1c // modified
        :pswitch_1c // modified
        :pswitch_1b
    .end packed-switch

[reference](In Japanese)

Android + b-mobile データ専用 SIM で電界強度を表示する http://bl.oov.ch/2012/01/b-mobile-sim.html
Android + データ専用 SIM での動作修正パッチ http://bl.oov.ch/2012/01/android-sim.html
Android 4.2.1 からの MVNO データ専用SIM http://bl.oov.ch/2012/12/android-421-mvno-sim.html

Hikaru Horie's Blog

8.20.2013

Solve Cell Standby Power Drein Issue for HTC One (m7) + Data-Only SIM + Android 4.3

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