Solution for Samsung Galaxy Hanging/Freezing Screen - Samsung Galaxy Core Duos GT-I8262

My Galaxy Core hangs all the time. I uninstalled all downloaded apps and also I did a factory reset, but that also didn’t help.

Some googling led me onto this post on XDA developers. If you want more info (and know more about the risks), go to the XDA forum and read the whole thing.

Temporary Fix

So the steps are install Dummy File Generator (DFG) on your phone. This app can populate your entire internal memory and SD-card memory with dummy data. I completely filled the internal memory with that tool. After that go back to the tool and choose "Delete" of all the dummy files.

You will get a warning message that memory is nearly full. Whatever you do - do not reboot in between this, because the phone won't reboot after that.

If the DFG hangs when trying to delete dummy files, then go to Application Manager > Dummy File Generator > Clear Data.

After this there will still be the odd freeze but not as severe as before (may be once a day).

More Reading:
http://androidforums.com/samsung-galaxy-s3/749952-solved-moment-s3-apps-crash-phone-freezes-everyday-factory-reset-already.html
http://forums.androidcentral.com/samsung-galaxy-siii-i9300/269096-s3-hanging-freezing-problem-solved.html

Better Fix

I took the phone to the Samsung mobile centre, they told me the problem actually is introduced after you do a software upgrade directly over wi-fi or network. They recommend downgrading to Factory version and they do the software upgrade for you and in 90% of the cases, this fixes the hanging problem.

HTC Wildfire Reset to Stock ROM

If you’re on cyanogenmod or some other rooted ROM and you’re missing the smoothness of HTC Sense J , worry not.

 If you didn’t take a Nandroid Backup of the stock ROM when rooting your phone, you’ll have to download and install the correct version of the stock HTC ROM for your model and region.

Some links to these ROMs are at

http://shipped-roms.com/index.php?category=android&model=Buzz

Generally, RUU's are named as

RUU_Buzz____Radio__release_.exe

 

 Note the EXE versions will UNROOT your phone and leave you with an original HTC ROM in case you need to claim a warranty fix on your phone.

 I prefer the ZIP versions which keep the phone with ROOT and you can then use Root Uninstaller from the Play Store to disable any system apps which you don’t want to use.

 For Wildfire S Asia India RUU this is the ZIP version of the ROM

http://forum.xda-developers.com/showthread.php?t=2025124

 And for plain Wildfire i.e. A3333 use the download from here

http://mediafire.com/?v8w3z5qtn4tje3s

In case the link is broken Search for “Buzz_Froyo_hTC_Asia_India_2.25.720.1-dannejo.zip”

Make sure you download the valid ROM for your REGION, and for your Device Model. The above link is only for ASIA_INDIA

Before you do anything else,

Take a Nandroid Backup of your working ROM.

If you use the wrong ROM, you will be stuck waiting on the HTC Logo screen for like ever.

If your phone is bricked in that manner, remove and then reinsert the battery and try to get into Recovery mode into one of the earlier Nandroid backups.

 Installation Method:

Take a Nandroid Backup of your Cyanogenmod ROM in case you want to revert to it later

• Copy the ZIP to root of your SD card
• Wipe Dalvik Cache
• Factory Reset
• Then flash the zip from SD card

First reboot takes a while – all else good after that

 

 

 

A Brief Encounter with Cyanogenmod 9 on the HTC Wildfire

I’ve been using CyanogenMod 7.2 quite happily since the last few months on Wildfire A3333. I recently tried to connect the stock Email application to a Microsoft Exchange 2010 server for my corporate Email.


When setting up the mailbox and accepting all SSL certificates and seting up a Password/PIN I still get the error

"This server requires security features your phone does not have"

This primarily seems to be because Android 2.x does not have this flavour of encryption – “full Storage card encryption”

This has been provided in Android 3.0 and in ICS 4.0 onwards for handsets

The relevant documentation is at http://code.google.com/p/cyanogenmod/issues/detail?id=3172



So I decided to upgrade to CM 9 for Wildfire and see where it takes me.

First and most importantly – do a Nandroid back up of the existing ROM and settings. You’ll revert to the backup many times. Also export phone contacts to a file which you will need to re-import later.

The version of CM 9 I used can be downloaded from here http://cm9-wildfire-s.googlecode.com/files/cm-9.0.0-RC2-CRYPTOMILK-ALPHA7-marvel.zip



After installing CM9 – the first impression was a neat boot logo which plays for the 3 minutes or so it takes to boot up the phone.


After that the phone was really really slow. The default launcher to show all apps and Dialer take over 5 seconds to respond.
Seems like the A3333 is just not cut for this ROM due to having only a single core CPU. Any reboot of the phone always takes over 3 minutes.

I tried using the Zend Launcher instead of the default Trebuchet and exDialer instead of the Stock dialer. This made these 2 functions much faster.

Also uninstalled some apps using the Solid Explorer. Some of the features were good - like longpressing an app allows it to send a shortcut to Home screen.

I tried encryption which I knew will slow down the phone even more. Most forums say this takes a long time, so I left it overnight with the charger plugged in.

I tried this process twice, and it still would always show the In Progress screen for encryption and not complete this even after taking 10 hours uninterrupted.

I followed the steps at How to encrypt


So finally I had to give up encryption, and revert the ROM to the backed-up CM 7.2

Using CM 9 gave me some neat apps which I now installed on 7.2

First, I didn’t like the Gallery app in 7.2 (it shows zoom buttons instead of pinch to zoom) so updated that with QuickPic
I also installed Solid Explorer which allows removal of apps even from /data/app and /system/app instead of File Manager.

How to check if HTC Wildfire is rooted

I noticed some posts asking to know if HTC A3333 is already rooted.


2 easy ways:

1. Presence of the Superuser app

Superuser comes pre-installed on any rooted ROM. In fact, without it, you don’t have a rooted device at all. You cannot uninstall it, it lives on the system partition with other apps that came pre-installed on your device.

2. Open the Terminal Emulator and type "su"

This will request for root access IF you are rooted

Another option is to download Root Checker from the market it will tell you if you have root

Rooting HTC Wildfire and installing Cyanogenmod

There are many guides out there, this is a diary of events and some errors you might run into and resolutions which worked for me.

Phone Model HTC Wildfire A3333 running on Android 2.2.1 (Froyo)

Began with HBOOT 1.01.0002

Note: To find your HBOOT version -

Switch the phone off, then hold the volume down button and while holding press the power button. At the top of the screen it will show the HBOOT version. To exit this screen, press the power button to select fastboot and then use the volume down to select reboot.
The One-click guide given at http://www.brighthub.com/mobile/htc/articles/100819.aspx did not work initially.

It ran successfully up to step 11 out of 11, when running Revolutionary it gets to a screen on the tool with the message stuck at "Waiting for device"

So I had to do this the older way downgrading to HBOOT 1.01.0001 followed by switching the phone to S-OFF mode

The complete guide which works for me is this one

http://www.aritrasen.com/2011/09/17/how-to-root-htc-wildfire-2-2-1-and-install-cyanogenmod/


Further errors that appear along the way and their solutions:

1. Revolutionary stuck at "Waiting for device"

The solution which worked after consulting various forums, was to install latest version of HTC Sync on the PC and then uninstall it, leaving the HTC Drivers on the PC.

Under Control Panel > Add/Remove Programs you should see the HTC drivers shown in the image below.



2. After this it proceeds to the point where Revolutionary says "Waiting for root"

This takes forever and does nothing.

Of course this is because I thought one of the steps was optional - that of downgrading from Froyo(2.2.1) to Eclair(2.1). Turns out, I do need to do that - once that is done, Revolutionary goes ahead and gives the Success message.


3. After that you can install Cyanogenmod. Ensure you install 7.1.0.1 and not 7.1.0.

7.1.0 is buggy and as soon as the phone reboots, it gives a "Force Close" message with no status / notification bar. It also does not show any incoming phone calls - you can hear the ringtone but there is not way to accept the call.

All of this is fixed in 7.1.0.1 which is downloadable as update-cm-7.1.0.1-buzz-signed.zip

After that, surprise surprise, there's no GMail, Market or Maps. These are not part of Cyanogenmod. These are available as a separate zip from http://wiki.cyanogenmod.com/wiki/Latest_Version/Google_Apps.

I used gapps-gb-20110828-signed.zip for Wildfire but still had to install Google Maps separately from the Market.

After this, I uninstalled some of the apps I didnt want to use in the Cyanogenmod ROM.

A list of what is safe to remove and what is not is given at the

Cyanogenmod wiki at http://wiki.cyanogenmod.com/wiki/Barebones

Follow the instructions and play around with it.

I later upgraded to CM 7.2 using this ROM from here

For those used to HTC's Predictive Dialer, the native CM one kind of sucks. Use the Touchpal Contacts smart dialer app from the Market. http://forum.xda-developers.com/showthread.php?t=817128

With 7.2 I've seen my battery charges quicker than before (with HTC ROM) and the interface is much quicker too.

Dont' forget to add some Lockscreen Gestures

More cool things to do are here

Additional reference links:

http://androidforums.com/wildfire-tips-tricks/348619-easy-ways-improve-htc-wildfire-speed.html

http://androidforums.com/wildfire-all-things-root/459656-what-do-when-rooted.html


http://unrevoked.com/rootwiki/doku.php/public/adb_in_recovery