[ROM] Htc Explorer (pico) "JaggyRom" [3.2.1] (5-7-12)

Oringally Published: 31st January 2012, 06:37 AM
Udpated: 9th July 2012, 10:25 AM
Category: ROM
Device: HTC Pico (Explorer)
Page Views: counter Views

JaggyRom for HTC explorer

An optimized, european, stock-based custom rom.

1. Features
  • Rooted
  • Kernel by yannou90.
  • Ext-2,3,4 partition support.
  • task killer tweak for speed
  • Apps2sd enabled (no need of link2sd anymore, don't use it).
  • BusyBox installed
  • Booting HTC Sound dissabled
  • Bash shell support
  • /etc/init.d scripts support
  • Dalvic-cache to SD enabled
  • Deodexed
  • Zipaligned to optimize Ram usage at every boot.
  • +135mb free internal memory at startup.
  • "ES file explorer", "Easyinstaller" and "A2SDGUI" preinstalled.
  • Dissabled scrolling cache.
  • Blue theme with scrolling glow.
  • CRT on/off animation. (thanks to pchandra)
  • Advanced quick settings.
  • Swipe to remove notifications.
2.Version History
JaggyRom_1.0JaggyRom_1.0_clean-With nearly every stock app wiped out . JaggyRom_1.032    - Added custom battery indicator (watch here)  - Data will not erase anymore when flashing rom, install to apply update.(wipe cache before through recovery, not dalvic cache) - Improved scroll on many apps.- Added ScreenFlashlight.apk, small system flashlight app with full brightness (thanks to deepaktom and cosmoon)  JaggyRom_1.13- Implemented swipe to remove notifications, you can now remove individual notifications from status bar by sliding your finger over them. - Fixed eventual stuck on HTC white screen when booting.  JaggyRom_1.44-Implemented advanced power menu(watch here)-Implemented Beats Audio sound mod-Reapplied Scroll improvement (tweak was not operative on previous version, sorry about that) -Dalvic heap size set to 32m by default-Updated Google maps, youtube, gmail and easyinstaller to latest version JaggyRom_1.5.0-improved image and video quality with Bravia Engine hack JaggyRom_2.0.1 -(NEW) now based on OTA update Europe 1.28.401.1 !!clean up system partition before installing JaggyRom_2.2.15- Fixed notification not deleting from status bar when pressing 'clear' button. - Updated su binary to latest. - Disabled the automatic check for OTA updates by default. - Disabled the 'tell HTC' pop up after a sudden shutdown by default. - Added "Russian", "Czech", "Danish", "Swedish" and "Dutch" languages to stock keyboard. (full support) - Added support for the following languages:English (United States)Espaņol (Espaņa!)Franįais (France)Italiano (Italia)Ukrainian (Ukraine)*Czech (Czech republic)*Vietnamese (Vietnam)*Arabic (Egipt)*Portugęs (Portugal)*Corean (Corea)*Nederlands (Nederland)*Japanese (Japan)*Rusian (Rusia)*Chinese (Simplified)*Chinese (Tradicional)*
*System will not show up on these languages but every app that supports that language (for example all Google apps) will change.The default system language for these will be English.If you are using a custom launcher (Go launcher, for example) you will probably have all your system on your selected language except the settings menu.
For the new languages and the default settings to show up you will have to format system/cache and make a factory reset, I am afraid. (make app backup) JaggyRom_2.3.4- Rebuilded boot.img back from stock to ensure no errors being made. It may solve some booting problems on some people. - Now dalvic cache is moved automatically at first boot. No need to do it manually. (150 mb free memory at first boot after factory resset) - Init.d scripts support. They were not supported on previous v2 versions. - Removed debugging mode persistent notification on status bar. - Recompiled SystemUI.apk, now suitable with UOTkitchen. - (new) Fixed eventual adb debugging notification showing again on notification bar. - (new) Set vm heap size back to 20m by default. Found to be the fastest value. Set it manually in with a2sdgui (recommended). JaggyRom_2.5.1 - Added arabic shaping support. - Removed ads from all applications/games! - Applied V6Supercharger tweak. - Zipalign on every boot. - Removed carrier name on notifications panel and made the clear notification button BIG. - changed the battery icon. - Many other init.d and build.prop tweaks. JaggyRom_2.5.5 - Rebuided SystemUI.apk, fix possible error when using uot kitchen. - Added Serbian and Hungarian language. (supported languages) - Added Gps tweak for faster and better locking to satellites.JaggyRom_2.5.8 - Removed warez app - Added "ES File Explorer" - Added build prop tweaks from "smurfed out" script.JaggyRom_2.6.1- Removed Supercharger and smurf out tweaks. (some people were noticing battery leaks)- Updated system apps to latest version.JaggyRom_2.7- Removed Beats audio mod.- Implemented Cranium Kernel rel#2JaggyRom_2.8- Moved back to 800mhz kernel by yannou90 as people requested (no benchmark improvements but it does improve the overall feeling)- Added CRT on/off animation effect. (Many thanks to pchandra) Watch video example hereWiping dalvic cache before installation is strongly recommended.you may also need to fix permissions inside advance options inside recovery.
JaggyRom 3


- Fixed CRT issue (sometimes rebooting after a call)

- Added advanced quick settings (thanks to pchandra)

- Added Adreneline engine: (thanks nilot27 for the tip )

✔ Increase touchscreen sensitivity
✔ Less RAM usage through zipalign. | World first smart zipaligning
✔ Reduced /dbdata, /data, /sdcard usage of *.db files and faster database access. | World first smart sqlite optimizing
✔ Faster disk access through remount script (noatime, disabled barrier etc) | World first smart remounting
✔ Better network throughput from TCP tweaks and 3G tweaks
✔ Tons of prop tweaks
✔ Overall Better Performance and Battery Life
✔ Less lags through LMK Tweak and Various VM Tweaks
✔ Faster SDCARD Read/Write Speed
✔ Bypass website like thepiratebay.se

- Added Bravia and Xloud engline.

Bravia engine: Improve screen quality of the display (You'll see improvements when you view a photo, watch movies, play games

Xloud engine: will make the volume more louder, sound quality is crispier and very clear than stock, and bass issues from stock will be fixed

-Blue Theme (system, dialer, keyboard, etc...)


- Fixed/edited many icons.
- Added modified build.prop to skip gameloft compatibility check.
- Modified battery indicator. Black background. Now stays blue and changes to red under 15%.


- Fixed/changed some remaining icons and camera app buttons (blue).
- Changed background of slide menu (dialer, apps list, clock..) It was to ligh, hardly visible.
- Changed header and clear buttons from status bar.
- Changed bootanimation. (Thanks to akya22!)
- Changed settings icons (now ICS style)
- Removed last build.prop (caused conflicts on some networks).get it from here.
- Changed default walpaper.
- Fixed blank area between notification and quicksettings tab.
- Updated Google play, Es file browser, Superuser, Maps, Streetview and Gmail to latest versions.


- Fixed possible bugs with calls.


-Fixed adrenaline engine script, no more memory leaks in /data/local.
-Fixed brightness Seekbar on Quicksettings, length was longer than actual visible area.
-Changed new unread mesage/call notification dot to blue.
-Removed recent apps from status bar.
-Removed Volume and Settings shortcuts from quicksettings.
-Some little changes in statusbar theme.
-Increased decode memory capability for progressive jpg file (hopefully better camera images) Thanks to nilot27!
-Added carrier name on satus bar.
-Fixed some icons (gmail stars)
-Removed some unnecesary lib files from lite version. Thanks to Nukeblitz!
  • Full: with every HTC widget and apps.
  • Lite: Removed all bloatware, widgets, Htc logging apps... (+25 apps, see list here, thanks to nukeblitz)
05D962D7AC3D4D8FCC1957B20F978FFF *JaggyRom_3.2.1.zip
4016AE15154413382914A74434236999 *JaggyRom_3.2.1_lite.zip


previous versions

To update to a newer version you dont need to wipe anything, it will all be done automatically. Wiping dalvic cache is recommended. No fixing permissions or any other thing is necessary.
3. Instructions, please read carefully

  • IMPORTANT: you need recovery by yannou90 with ext support to use this rom, please follow step 3 from this tutorial (or 1 to 3 if you have not rooted your phone yet).
  • (not needed from version 2.3.1) To move your Dalvic cache open "A2SDGUI" app and press "move" in the dalvic tab. Free up +60mb!
  • use "Titanium backup" to move data to sd card ext partition, choose apps you want to move their data, long press on them and select "move app data to sd". Both data and lib files will move. You can also select batch option to move several applications data at the same time. select a single app first so data folder is created.Check what apps are using the data with "DiskUsage" browsing /data
  • Install the .zip in the recovery menu (install zip to sd option) once you unlocked your bootloader and flashed your recovery. Tutorial by me here.

First time installing this rom? Take a look at the first time user detailed tutorial by mahmudaq(thankyou dude )

  • Do a factory reset after making backup of your apps (with titanium backup... etc.) if you have a different rom (stock...).
  • Apps will install automatically to your SD partition. Partition your sd card before (before flashing recommended) to Ext2,3,4 (not fat32) format using programs like Minitool partition wizzard, or using recovery option (no swap needed). Around 500mb-1Gb partition would be fine to start with (depends of how many apps installed). (don't make it greater than 2gb). If you use "Minitool partition wizard" remember to leave the first fat32 partition at the left and then a primary Ext2/3/4 partition.
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  • To check used/free memory on SD partition browse /system/sd with "DiskUsage". Internal memory in /data
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  • NOTE: If you want to be able to make a full nandroid backup, including your ext partition, you need the custom recovery made by "yannou90". I updated the recovery (on february 21st) on my rooting tutorial, just download it and flash it.

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4. FAQ Never post a question before reading.

Q Phone freezes and reboots randomnly. I have installed the rom following the correct procedures. Whats going on?
A Some phones have problems with the overclocked kernel provided with this rom, the best alternative is cranium kernel by sakinda123. Follow this link to flash it.

Q After installing many apps one or a few have stopped working, force
closing. Phone reboots when updating apps. Rebooting phone doesnt solve the probem.

A Some people reported this problem, fix it by going to APP2SDGUI and pressing "rebuild" ig you are experiencing force close of apps. If the phone shows a black screen when trying to install an app and shows the bootanimation for a short time, do a normal restart to fix it.

Q Apps still install on the instarnal memory, I have to move them manually using link2sd or simillar.
A Apps will appear to your system that they are on the internal memory but they are NOT, they are just linked to it. To check the memory go to /system/sd with "DiskUsage" for the sd partition and internal memory in /data. select [root required] to be able to select them in the application.

Q I want to modify battery mod, add scrolling glow or make other customization to them rom, how can I do it? Could you upload it?
A As every person has different likes about customizations of icons and colours, If you want to customize your rom visit http://uot.dakra.lt/kitchen/
upload the required system files from the zip and after downloading the modified ones swap them and install the rom normally.

Q I just installed the rom and every time i try to install an app,the screen goes blank and I get the startup animation...this happens even after I restarted my cell twice...any help?
A Go to A2SDGUI and rebuild dalvic cache. If this doesnt work remember you had to use the recovery from rooting tutorial here, step 3. NOT the recovery installed from "Rom manager" and make factory reset with it before installing the rom.

I will kindly answer to your questions but please not repeated ones, try to search the thread before you post.
5. Themes, flashable through recovery

Download on this thread

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1 2

  • Move clock to the center of the status bar. (only for version 2.5.1+)
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If you made your own theme and want to share it, send me a PM.

Thanks to everyone who donated!

Send me a PM with the transaction number if you want your name to be shown here.