田三填四: ROM

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Nexus One 4.2.2

Flash Custom ROM basic steps for Nexus One OR Android Devices

Prerequisite

- Nexus One Windows drivers //(Download) OR Android SDK

- ADB (Android Development Bridge) tools //(Download) OR Android SDK

- Class-10, 8-16G Micro SD, it's cheap now (HK Price) //Due to Nexus memory limited, fast SD used for additional apps storage

- Computer with Windows XP+ //seek tools for Linux, Mac, etc by yourself

Steps

- Backup applications list by aTrackDog(SD) track backup app (Play Store) //email the list out

- Backup APN, Call Log, SMS, and other kinds of setting, data and copy all stuff to desktop

- root the Nexus One OR Android device (xda) // Fastboot.exe download

- flash recovery

- Blackrose [System: 260 Cache: 8 Userdata: 168] // Nexus One only due small system size

- Download ROM to desktop [ [ROM/4.2.2] [Mar 02 2013] VJ CM10.1 | Jelly Bean 4.2.2 - v5.0 for N1]

- Boot into recovery by “power on" + “vol-down”

- Re-partition SD-Card in recovery with swap:128 - 256, sd-ext:1G+, FAT:rest (recommend swap:256M)

- mount USB storage in recovery, restore SD-Card by copy useful data back to SD-card

- Wipe all and flash ROM in recovery

- Connect desktop, start “adb shell”, type "a2sd install", type "Y N Y" and reboot

- Connect WI-Fi and sign in with Google Account, Apps should auto re-install from Plat Store

- Check a2sd diskspace, setting storage size, etc

- Go to Settings -> Launcher -> Homescreen -> Check "Stretch screens", Un-check "Scroll wallpaper", Check "Wallpaper quick render" //suggest by the developer

- Click Setting -> About phone -> Build Numbers 7 times for developer options

- Tweak (overclock, memory, windows scale, etc)

- Install apps (Play store)

- Enjoy and thanks AOSP, CM, Evervolv, AOKP and vijendrahs, this 4.2.2 ROM is smooth and nice for daily use :D

And video preview from Dima Kantargi

Nexus One running Android JB 4.2.1 CM10.1 v4.7 by VJ

anr_history.txt and Low on space

After my Nexus One flashed the custom ROM - eViL Sense v1.26 and partition the SDcard with 512M ext 3. Everything work great with additional storage which help a lot to install plently of apps (2xx).

Recently, it’s found that “Low on space” happened and even clear the storage, it’s still eat up the storage and “Low on space” appeared.

After checked, there have a file called anr_history.txt is grow up to 7X Mbytes which located at
/data/data/com.android.htcprofile

by using “du -sh *” at the folder /data/data.

Google it a lot & seems related to Dalvik but not much discussion found. As a result, working with below steps to clear the storage.

1. Backup using Nandroid.

2. Copy the anr_history.txt to /sdcard for restore backup when having problem.

cp anr_history.txt /sdcard

3. Clear the content of the anr_history.txt, "DON'T" rm it to avoid having file permission problem.

echo “ “ > anr_history.txt

4. Check the SD and phone storage

Storage restored to 8X Mbytes. Great!

Update:

ANR = Application Not Responding
using find the anr_history - "find / -name anr_history.txt"

Android - SPL, Fastboot, Recovery

當大家的 Android 手機開始陳舊, 跟不上時代步伐, 同時保養又好快到期. 睇怕只有出售僅有幾塊錢的"老拍檔" 或是上 xda forum, 找找 (同病相連的) hacker 特制 ROM.

這裡有幅關於 SPL, Fastboot, Recovery 的關係圖. 雖然睇完都未必知有咩用. 當 flash (刷) 得多, 救機救的多. 第日睇返一定會明白箇中奧秘.