How to install a different language ROM in you PDA

iPAQ 3900 series..

1.- Download the last ROM upgrade for iPAQ 3900 series.

2.- Using Winzip, unpack the ROM upgrade file.

3.- Run the program upgrade utility until it asks to push the upgrade button.

4.- Without leaving the utility, open the .NBF file extracted from iPAQ upgrade.

    for 3975 English series is: NK_Windsor21010WWE.nbf

    for 3970 Spanish series is: NK_Wisr210_14_ESP_BT.nbf

    for 3955 English series is: NK_Windsor11010WWE.nbf

    for 3950 Spanish series is: NK_Wisr111_01ESP_NBT.nbf

5.- Hex edit that file and you will find something like:

For 3975 English series.-

iPAQ 3900-WBT-ENG-2.10-2CF4...

For 3955 English series.-

iPAQ 3900-NBT-ENG-1.10-9673...

6.- Replace "ENG" with your current country code ("SPA" for Spanish, "FRE" for French, "GER" for German...).

7.- Replace the hex checksum value for the correct country checksum (see tables below).

ie: To change a 3970 from Spanish to English, change the 2cf4 for 2cfe

Use the tables below depending from wich ROMPAQ language you are downloading

from HP-Compaq download site:

Table 1: Languages for 3975 English ROMPAQ series:

Directory

Language abbr.

Hex-Codes

Result & Calc.

Checksum

english

"E" + "N" + "G"

45 + 4E + 47

DA + 2c1a

2cf4

german

"G" + "E" + "R"

47 + 45 + 52

DE + 2c1a

2cf8

spanish

"S" + "P" + "A"

53 + 50 + 41

E4 + 2c1a

2cfe

french

"F" + "R" + "E"

46 + 52 + 45

DD + 2c1a

2cf7

 

Table 2: Languages for 3955 English ROMPAQ series:

Directory

Language abbr.

Hex-Codes

Result & Calc.

Checksum

english

"E" + "N" + "G"

45 + 4E + 47

DA + 9599

9673

german

"G" + "E" + "R"

47 + 45 + 52

DE + 9599

9677

spanish

"S" + "P" + "A"

53 + 50 + 41

E4 + 9599

967D

french

"F" + "R" + "E"

46 + 52 + 45

DD + 9599

9676

 

Table 3: Languages for 3970 Spanish ROMPAQ series:

Directory

Language abbr.

Hex-Codes

Result & Calc.

Checksum

english

"E" + "N" + "G"

45 + 4E + 47

DA + A0A3

A17D

german

"G" + "E" + "R"

47 + 45 + 52

DE + A0A3

A181

spanish

"S" + "P" + "A"

53 + 50 + 41

E4 + A0A3

A187

french

"F" + "R" + "E"

46 + 52 + 45

DD + A0A3

A180

 

Table 4: Languages for 3950 Spanish ROMPAQ series:

Directory

Language abbr.

Hex-Codes

Result & Calc.

Checksum

english

"E" + "N" + "G"

45 + 4E + 47

DA + C838

C912

german

"G" + "E" + "R"

47 + 45 + 52

DE + C838

C916

spanish

"S" + "P" + "A"

53 + 50 + 41

E4 + C838

C91C

french

"F" + "R" + "E"

46 + 52 + 45

DD + C838

C915

To create more tables for other languages, use the following formula:

    a) Download the ROMPAQ file.

    (ie: if u want to change the language from English to French, download the French

    ROMPAQ).

    b) Using Winzip, unpack the ROM upgrade file.

    c) HexEdit the .NBF file.

    d) Locate the hex value for the Country Code.

    (ie: for the French ROMPAQ is ebef).

    e) Use Calc.exe in scientific mode (switch to hex) and type the original ROMPAQ

    checksum minus the HexSum of the original language (DD for French).

    result = ebef - DD

    result = EB12  , then your French Table will be as follows:   

Table 5

Directory

Language abbr.

Hex-Codes

Result & Calc.

Checksum

english

"E" + "N" + "G"

45 + 4E + 47

DA + EB12

EBEC

german

"G" + "E" + "R"

47 + 45 + 52

DE + EB12

EBF0

spanish

"S" + "P" + "A"

53 + 50 + 41

E4 + EB12

EBF6

french

"F" + "R" + "E"

46 + 52 + 45

DD + EB12

EBEF

8.- Save and close the hex edit program.

9.- Rename the .NBF file acording to the correct country name:

ie: To change  a 3970 from Spanish to English, rename the file

NK_Windsor21010WWE.nbf  to  NK_Windsor21010ESP.nbf

10.- Switch to the upgrade utility program and push the upgrade button.

NOTE: I used the above steps to change a 3970 from Spanish to English and

from English to Spanish so,i have not tested the rest of the codes from Tables

1, 2, 3, 4 and 5.

Warning: doing this you can void your warranty.