SonyEricssonJ100i » History » Version 3
Anonymous, 02/19/2016 10:49 PM
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| 2 | = Sony Ericsson J100i = |
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| 3 | |||
| 4 | 3 | The J100i seems to be one of many ODM phones that Sony Ericsson bought from Compal communications in Taiwan. |
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| 5 | |||
| 6 | 1 | == Specifications == |
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| 7 | |||
| 8 | 3 | * GSM 900 / GSM 1800 dual-band (J100i) |
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| 9 | * GSM 850 / GSM 1900 dual-band (J100a) |
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| 10 | * 100 x 44 x 18 mm, 79g |
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| 11 | * STN 65k - 96 x 64 pixels |
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| 12 | * 900mAh Li-Po battery |
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| 13 | * Ti Calypso/Iota/Rita chipset |
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| 14 | |||
| 15 | 1 | == Hardware == |
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| 16 | |||
| 17 | 3 | === Schematics === |
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| 18 | |||
| 19 | They can be found here: http://files.shrak-mobile.com/schem/se/J100_schem.rar |
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| 20 | |||
| 21 | 1 | === GSM Chipset === |
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| 22 | |||
| 23 | * DBB: Ti Calypso Baseband, D751749ZHH model (Calypso Lite G2), includes 256kBytes of internal SRAM |
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| 24 | * ABB: Ti TWL3025BZ |
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| 25 | * RF: Ti TRF 6151CJ |
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| 26 | * RF PA: SKY77328-13 |
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| 27 | |||
| 28 | === NOR Flash + SRAM === |
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| 29 | |||
| 30 | * Intel RD38F1010C0ZTL0 |
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| 31 | 3 | * 32MBit NOR (4 MByte) |
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| 32 | * 4Mbit SRAM (512 KByte) |
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| 33 | 1 | ||
| 34 | 2 | === Audio ringtone === |
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| 35 | 1 | ||
| 36 | 2 | * Macronix MX92U832AZCG (unknown datasheet) |
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| 37 | |||
| 38 | 3 | === Display === |
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| 39 | |||
| 40 | The display is a 96 x 64 pixels CSTN color display attached to the Calypso DBB via the uWire interface (nReset, nSCS0, SCK, SDO). The backlight is controlled by the DBB IO1. |
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| 41 | Exact model unknown for now. |
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| 42 | |||
| 43 | 2 | === Test points === |
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| 44 | |||
| 45 | There are some easily accessible test points (i.e. bigsqare and not very small round pads behind the rf shields). |
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| 46 | |||
| 47 | Theses test points are divided in two groups (when looking from behind the phone) : |
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| 48 | |||
| 49 | * A group of 7 TPs at the lower left of the PCB. Accessible from the battery compartment without disassembly except for the first one. From left to right : |
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| 50 | * '''TP16''': JTAG TDO |
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| 51 | * '''TP9''': CTS MODEM |
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| 52 | * '''TP13''': TX MODEM |
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| 53 | * '''TP14''': RX MODEM |
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| 54 | * '''TP3''': DL PWR |
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| 55 | * '''TP107''': GND |
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| 56 | * '''TP19''': VBAT |
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| 57 | * A group of 5 TPs at the middle/upper right of the PCB. Theses are not accessible without disassembly, but could be by cutting a small plastic strip just right of the hole made for the battery connector. From left to right: |
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| 58 | * '''TP18''': JTAG TMS |
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| 59 | * '''TP20''': BAT_TEMP |
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| 60 | * '''TP17''': JTAG TCK |
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| 61 | * '''TP15''': VCHG |
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| 62 | * '''TP8''': JTAG TDI |
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| 63 | 3 | ||
| 64 | == Misc notes == |
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| 65 | |||
| 66 | === Bootloader === |
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| 67 | |||
| 68 | The RAM loader of the J100i is very similar to the one of the MotorolaC123 series and it works fine with osmocon. It however expects a 0x1003 magic word to be present at address 0x803ce0 which we currently don't do. |
