Nokia Firmware Core Editor By Doctorly

All Credit to doctorly (OPDA)

Finally we have Core Editor !

It work ! Tested

HOW TO USE:

1- Browse to your core file (C6 ported core or Original Core)
2- Extract (It will extract to local folder ROFS)
3- Edit any things you want :)
4- Finally repack Core
The new edited core will be on Repack folder
Rename it then copy this replace old core (back up old core if need)
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IF Don`t work ? Try this

5. In window "Partition" in line ROFS1 change 2B on 2C



Quote & Notes  from Doctorly

"This NFECore2, NOKIA firmware is used to modify the core package file. This file is the key to the firmware file is the file Size the general characteristics of the largest (except for a large language pack, the original is the largest), the most complex structure, the file name contains "core" "C00" and so forth. This tool is only allowed to deliver before the file information, but can not be modified. Since the number of 600 models were lucky to find and verify changes, the core package can modify the rofs partition.

We thank the TX. I was not sure who are those people, but according to the order of posting, is the Saipan xiaognef and OPDA model area of 600 leaves. Thank them for their willingness to share this strange technology.

On the basis of their work, this NFECore2, to NOKIA for all current models (Saipan 3, S60v5, S60v3fp2, S60v3fp1) complete the following modifications:
(1) unpack the core package ROFS1 partition file; (Note that only ROFS partition, there are other file is the core package can not be changed, so do not unpack)
(2) modify ROFS partition files and packaged;
(3) modify the firmware of the calibration parameters (see 600 models);
(4) Check ROFS partition size, if possible, can expand ROFS1 partition space;
(5) If necessary, the core package can be modified for any file CRC32 values.

Second, open the core package file
Start screen in "Open File" button to start a dialog box, select the core package file.
Drag and drop files directly to the window of a core package, but also open the core package file.
Note that the interface in the "Related" button, you can NFECore2 add Explorer context menu. This is more convenient to open the file.
Open the file later, NFECore2 will read out all relevant information. The upper part of the file's CRC32 CRC32 value and location of proposed changes. Displayed in the lower part including the file directory, ROFS partition the total capacity and remaining capacity. Figure

Third, pack unpack
No difference between this operation and NFE, after unpacking, editing ROFS directory, DIY, and then select the package you can, pack the files after the directory in NFECore2 Repack directory. Package can check the Chinese characters. And NFE of the most important difference is that if the capacity gauge package, will terminate immediately packaged, gives tips.

If you want to maintain the CRC32 value, click the "Keep CRC32" can be. Note, however, where maintaining CRC32, need to enter the 16 hex values. This position requires careful selection. Models are generally non-fp1 place in the 0x11. fp1 the difference between the position of aircraft is relatively large. Because E71 event, I suggest fp1 models do not choose to keep CRC32.
Note that the package before the first modified calibration, this calibration changes to be effective.
Fourth, change validation


Important, this change must verify the dialog press the "OK to return", do not fork out, it will mess reform. This is a newly discovered BUG.

This operation is to help the TX modification check. Please read the specific principles and leaves Saipan xiaognef posts. Figure:


Note that the general value of the original firmware is 2B, non-fp1 models can be changed to 2A. fp1 models into 2A may not, be changed to 2C. Other values ​​have not tried. The consequences of mistakes in what I do not know, please tell us tried TX.

Specified, if it is N78, 5320 such models, as well as many original fp1 models need to be deleted to bypass some of the language in paragraph 5D check the package, or need to replace the head of the language pack to bypass validation, Please note that these language packs for "bypass" operation no longer have to check, and I do not recommend using previously been "bypassed" treatment of the language pack, but directly use the original firmware, language pack to DIY.

Anyway, keep in mind that, with 600 ways to modify the calibration model after the original firmware to make use of the language pack rofs2, 3 files to DIY. I produced a large language pack is also OK, but it must be sent to my files, modified might not be. Principle is rofs2, 3's head must remain consistent with the original.

Change the parity change in the source file directly, please do yourself a backup.

V., ROFS capacity adjustment (expansion)
There are some models and some versions of firmware, ROFS1 not used in some space, which is NOKIA keep spare, used to upgrade the core package ROFS1 reserved space. NFECore2 can check whether there is such a space, and can modify ROFS1 partition size to the maximum. This modification does not affect the rofs2, 3 files, they can still use. Expansion of operations at any time to give up. Expansion of operations to change in the source file directly, make your own backup. Figure

Reaffirmed:
1. Core package changes and there is great risk of brush than change the language many times greater risk of the package, be sure to carefully decide whether to amend. This tool may not be suitable for beginners.
2. S60v3Fp1 TX models do not use this tool to temporarily change the core package. fp1 models may need to continue using large language pack.
3. In the modified checksum expansion operation, NFECore firmware will check for problems. If you do not meet the characteristics of the original firmware file, to be safe, NFECore will cancel the operation.
4. The core package to do your own backup file, modify the checksum operation and expansion of operations directly modify the source files."

 

China version

UPDATE - BUG FIX 9/7/2011

Other link 

English Version

Other link 

Russia Version

Other link 

Thanks to Newcooller,Operator_555 

Found a small error, using Explorer, select the file and right-open, all operations are not normal.

Note:- Editing core is not a Game.Put your software's in rofs2 for safer repacking & upgrading.Dont try to create a partition with this tool if you are not familiar with this.It may brick your phone.