Project

General

Profile

GalaxySIIGTI9100G » History » Version 80

Hpag Seddy, 04/03/2020 03:44 PM

1 19 Denis 'GNUtoo' Carikli
h1. Galaxy S II (GT-I9100G)
2 2 Denis 'GNUtoo' Carikli
3 20 Denis 'GNUtoo' Carikli
{{>toc}}
4
5 21 Denis 'GNUtoo' Carikli
|/9. !galaxys2.png! | *Device* | Galaxy S II (GT-I9100G) |
6 20 Denis 'GNUtoo' Carikli
| *Manufacturer* | Samsung |
7 21 Denis 'GNUtoo' Carikli
| *Release date* | ? |
8 22 Denis 'GNUtoo' Carikli
| *Codename* | @i9100G@ ? |
9 20 Denis 'GNUtoo' Carikli
| *Status* | Not supported yet |
10 23 Denis 'GNUtoo' Carikli
| *Variants* | GSM: GT-I9100G |
11 20 Denis 'GNUtoo' Carikli
| *Latest images* | None |
12
13 17 Denis 'GNUtoo' Carikli
h2. History
14
15 56 Denis 'GNUtoo' Carikli
Long time ago, we had reports that the "Galaxy SII" had an unsigned bootloader, but we didn't manage to confirm to which exact model it applied to, or if people assumed that the bootloader of the GT-I9100 was unsigned because it uses Xloader which is GPLv2. Samsung also published the source code of various Xloader versions they used on the GT-I9100G for different Android versions. However until now we weren't able to confirm that any device were able to run unsigned bootloaders. Though we verified that at least the bootloader of the I9100G_CHN_CHN is signed.
16
17 17 Denis 'GNUtoo' Carikli
h2. Rationale
18 1 Denis 'GNUtoo' Carikli
19 57 Denis 'GNUtoo' Carikli
* Uses the samsung-ipc protocol
20 17 Denis 'GNUtoo' Carikli
* The modem probably uses MIPI, so it should be isolated
21
* 1G of ram => it should be enough for Replicant 6 and 9
22 1 Denis 'GNUtoo' Carikli
23 34 Denis 'GNUtoo' Carikli
h2. Wiki pages
24
25
* [[I9100GBootloader]]: Research on bootloader freedom for the GT-I9100G
26
27
h2. Various IRC logs of research on it.
28 24 Jens Korte
29 61 Denis 'GNUtoo' Carikli
TODO:
30
* Read the log below and remove what is not relevant
31
* Add what is relevant in various pages of the Replicant wiki or Wikidata and point to that if it's in another page that this one (or wikidata).
32
33 63 Denis 'GNUtoo' Carikli
h3. GT-I9100G bootloader related
34 1 Denis 'GNUtoo' Carikli
35
(08:47:20 PM) sensiblemn: GNUtoo: i just got a report from a postmarketOS developer saying that booting works with that free software x-loader repo for the i9100G that I found. they had to make a one line commit to get it building, but it boots. https://github.com/hpagseddy/i9100g_xloader/commit/0505138dd163959443f09b7178142c0472f60582
36 62 Denis 'GNUtoo' Carikli
(08:48:24 PM) sensiblemn: so early reports suggest that we found a Galaxy S2 that has a free software bootloader. they said it doesn't even need to be signed with signGP.c.
37 1 Denis 'GNUtoo' Carikli
(10:36:35 PM) hpagseddy[m]: So i have an i9100g and compiled this without any errors in case you guys are interested https://github.com/hpagseddy/i9100g_xloader
38
(10:49:32 PM) freekurt: thanks for jumping in here hpagseddy. we have been trying for quite some time to find a way to liberate the first stage bootloader on Exynos4 SoC based i9100 and i9300 devices. this is great news that the i9100G seems to have a free software first stage bootloader.
39 14 Kurtis Hanna
(10:51:08 PM) hpagseddy[m]: Yep, also there is a thing that i9100g is based on TI OMAP
40 63 Denis 'GNUtoo' Carikli
41 64 Denis 'GNUtoo' Carikli
h3. GT-I9100G Linux upstreaming
42 63 Denis 'GNUtoo' Carikli
43 14 Kurtis Hanna
(11:01:27 PM) hpagseddy[m]: Btw Droid 4 has mainline
44 1 Denis 'GNUtoo' Carikli
(11:02:42 PM) hpagseddy[m]: i9100g uses same display and digitizer with i9100, has a broadcom wifi but sadly a PowerVR GPU
45 64 Denis 'GNUtoo' Carikli
(11:10:48 PM) hpagseddy[m]: Since it uses same display and even same connectors
46
(11:11:06 PM) hpagseddy[m]: I know it because i am using i9100 display on my i9100g :)
47
(11:11:17 PM) hpagseddy[m]: Besides capacitive buttons, all functional
48
(11:11:48 PM) hpagseddy[m]: Even capacitive connector plugged in so if i do some kernel hacks i can get them working too
49
(11:11:50 PM) freekurt: we really appreciate your willingness to do testing if we decide to proceed with trying to mainline this device, which has yet to be determined.
50
(11:14:38 PM) freekurt: it seems as though this device would be quite attractive to other pmOS devs as well, now that the freedom of the bootloader appears to have been determined.
51
(11:15:19 PM) hpagseddy[m]: I hope so, i was the only maintainer over 2 years :)
52
(11:15:27 PM) hpagseddy[m]: Of this device
53
(11:15:37 PM) freekurt: :-) thanks for holding down the fort!
54
(11:15:52 PM) hpagseddy[m]: But if the device gets mainlined, things will definitely change
55 63 Denis 'GNUtoo' Carikli
56 71 Denis 'GNUtoo' Carikli
h3. OMAP4 blaze reference platform related
57 14 Kurtis Hanna
58
(07:17:23 PM) sensiblemn: GNUtoo: ah, it seems like some OMAP devices are GP and others are HS, so the question is whether we can find smartphones and tablets that are GP. Looks like the Blaze Tablet released by TI is GP. https://wiki.tizen.org/Tizen_IVI_Getting_Started_Guide_For_PandaBoard#x-loader_config_files [...]
59
(07:22:26 PM) sensiblemn: also this very odd looking OMAP Blaze cell phone seems to be GP rather than HS. https://www.slashgear.com/texas-instruments-omap-blaze-on-sale-now-1485657/
60
(07:23:30 PM) sensiblemn: https://www.ebay.com/itm/TI-Stereo-Camera-Blaze-development-Plattform-im-Wert-von-1-800USD/131690215016
61
(07:24:04 PM) sensiblemn: https://web.archive.org/web/20180903060622/http://omapedia.org/wiki/OMAP4_Blaze
62 1 Denis 'GNUtoo' Carikli
63 71 Denis 'GNUtoo' Carikli
TODO: add the blaze, zoom1 (omap3), zoom2 to the reviewd devices and to wikidata
64
65
h3. Android requirements
66
67 14 Kurtis Hanna
(10:58:08 PM) freekurt: 512 MB of RAM seems rough for AOSP 10, especially when we are trying to get it to work with 2D acceleration. 1GB should be much better.
68 1 Denis 'GNUtoo' Carikli
=> TODO: check Android 10 requirements and add them to the wiki
69 14 Kurtis Hanna
70
71 74 Denis 'GNUtoo' Carikli
h3. I9300T
72
73
(12:51:55 AM) forkbomb: the i9300T is just a Telstra branded i9300 afaik
74
(12:52:49 AM) hpagseddy[m]: <freekurt "yeah, that might be it. https://"> i9300T has the same SP6260 naming as i9100g as this shows
75
(12:53:10 AM) sensiblemn: you're correct
76
(12:54:16 AM) sensiblemn: also, not sure if this is the correct defconfig, but this kernel from samsung suggests it is xmm6260 also https://github.com/LineageOS/android_kernel_samsung_t1/blob/10ca03795f659f6f1fa995e8c300a08c3a133354/arch/arm/configs/android_t1_omap4430_r03_eng_defconfig#L1097
77
(12:55:09 AM) hpagseddy[m]: t1, thats correct
78
(12:55:18 AM) hpagseddy[m]: but the defconfig isnt
79
(12:55:48 AM) hpagseddy[m]: https://github.com/LineageOS/android_kernel_samsung_t1/blob/10ca03795f659f6f1fa995e8c300a08c3a133354/arch/arm/configs/cyanogenmod_i9100g_defconfig
80
(12:55:52 AM) hpagseddy[m]: this is for the device
81
82
83 70 Denis 'GNUtoo' Carikli
84
h3. TODO: Notify forkbomb
85
86 14 Kurtis Hanna
(01:00:57 AM) sensiblemn: forkbomb: did you hear that we seem to have found a free software first stage bootloader for the i9100G and that it doesn't seem to require any signature checks?
87
(01:01:27 AM) hpagseddy[m]: yes i compiled and ran it on my device with no problem
88
(01:01:59 AM) hpagseddy[m]: also fixed the old build a bit
89
(01:02:02 AM) hpagseddy[m]: >So i have an i9100g and compiled this without any errors in case you guys are interested https://github.com/hpagseddy/i9100g_xloader
90 1 Denis 'GNUtoo' Carikli
(01:05:55 AM) forkbomb: no, i didn't. very nice!
91 14 Kurtis Hanna
(01:06:35 AM) hpagseddy[m]: well i dont know how to use it so just compiled and flashed with odin
92
(01:06:45 AM) hpagseddy[m]: also one line fix hehe
93
(01:07:33 AM) hpagseddy[m]: it compiled with no problem on 4.6 gcc
94
(01:14:47 AM) sensiblemn: hpagseddy: it is my understanding that, since x-loader is EOL, and since Replicant wants to upstream as much code as we can, we would have to upstream what x-loader is doing into u-boot SPL, which i don't know how long it would take to do. the fact that very similar devices are already in upstream u-boot likely will help though, if we decide to pursue it.
95
(01:16:01 AM) hpagseddy[m]: Since it is open source, it is ok to keep it untill we have the device booted in my opinion
96
(01:16:17 AM) sensiblemn: yes, for sure.
97
(01:17:00 AM) hpagseddy[m]: but well last decision is yours since you guys are the replicant devs :)
98 70 Denis 'GNUtoo' Carikli
99
h3. LineageOS support
100
101 14 Kurtis Hanna
(01:22:29 AM) sensiblemn: hpagseddy: have you tested LineageOS 13 on the device before? https://forum.xda-developers.com/galaxy-s2/development/rom-lineageos-13-0-t3620246
102
(01:23:21 AM) hpagseddy[m]: yes it had several issues but performance was good
103 1 Denis 'GNUtoo' Carikli
(01:23:33 AM) hpagseddy[m]: it had audio error which was so annoying
104 14 Kurtis Hanna
(01:23:41 AM) hpagseddy[m]: 12.1 was best
105
(01:24:22 AM) sensiblemn: what kind of audio error?
106
(01:25:51 AM) hpagseddy[m]: audio was some kind of disorted
107
(01:39:01 AM) sensiblemn: hpagseddy: did you notice any other issues?
108
(01:39:11 AM) sensiblemn: with 13?
109
(01:40:13 AM) hpagseddy[m]: Gps doesnt work
110
(01:40:18 AM) hpagseddy[m]: Night mode doesnt work
111 70 Denis 'GNUtoo' Carikli
112 14 Kurtis Hanna
01:56 <@GNUtoo> Did LineageOS or Cyanogenmod support it at some point?
113
01:57 < hpagseddy[m]> Cyanogenmod untill 13.0
114
01:57 < hpagseddy[m]> Omnirom 4.4 and 5.0.2
115
01:57 <@GNUtoo> ok, that explains why LineageOS has some stuff on it but nothing on the wiki
116
01:57 < hpagseddy[m]> thats all i remember and tested
117
[...]
118
01:58 < hpagseddy[m]> GNUtoo: yeah they just forked it and it just stays there
119
[...]
120
01:59 < hpagseddy[m]> but 12.1 is still cyanogen
121
02:00 < sensiblemn> there was an attempt made at 14.1 but it seems like it was unsuccessful because it wouldn't boot
122
02:00 < sensiblemn> https://github.com/xdaamg/android_device_samsung_i9100g/tree/cm-14.1
123
02:00 < hpagseddy[m]> also someone rebased cm11 to lineage 11
124 70 Denis 'GNUtoo' Carikli
125
h3. TODO: look at omap-usb-tool patches and merge them or ask for sending patches for review
126
127
(01:19:56 AM) sensiblemn: GNUtoo: this looks like omap-usb-tool but it was recently updated https://github.com/LukasTomek/omapboot
128
(01:21:37 AM) hpagseddy[m]: hmm, he forked this repo from https://github.com/kousu/omapboot
129
(01:22:03 AM) hpagseddy[m]: so he added sd card booting
130
(01:22:09 AM) hpagseddy[m]: and some fixed
131
(01:22:13 AM) hpagseddy[m]: fixes*
132
(01:22:25 AM) GNUtoo: https://git.paulk.fr/omap-usb-boot.git
133
(01:22:29 AM) GNUtoo: but it seems down right nw
134
(01:22:32 AM) GNUtoo: *right now
135
136
h3. Diff between the samsung xloader and hpagseddy xloader
137
138 73 Denis 'GNUtoo' Carikli
hpagseddy's fork consists of Samsung source code with the addition of "a fix to enable to build it (with more modern gcc?)":https://github.com/hpagseddy/i9100g_xloader/commit/0505138dd163959443f09b7178142c0472f60582 .
139 45 Denis 'GNUtoo' Carikli
140 28 Denis 'GNUtoo' Carikli
h2. Partitions
141
142
The PIT  of the Galaxy SII (GT-I9100G) can be found in the [[GalaxySIII9100GPit]] page.
143 36 Denis 'GNUtoo' Carikli
144 45 Denis 'GNUtoo' Carikli
|_. PIT |_. Linux name |_. mount point |_. partition type |_. block device |_. Description |
145 51 Denis 'GNUtoo' Carikli
| MLO |\2. Not visible on Linux | | | First stage of bootloader |
146
|\2. EFS | | | mmcblk0p1 | modem data partition |
147 52 Denis 'GNUtoo' Carikli
|\2. SBL1 | | | mmcblk0p2 | |
148 51 Denis 'GNUtoo' Carikli
|\2. SBL2 | | Empty | mmcblk0p3 | |
149
|\2. PARAM  | | | mmcblk0p4 | |
150
|\2. KERNEL | None | zImage | mmcblk0p5 | boot partition, See [[IsorecRecoveryIssue]] for more details |
151
|\2. RECOVERY | None | | mmcblk0p6 | recovery partition, See [[IsorecRecoveryIssue]] for more details |
152
|\2. CACHE| | | mmcblk0p7 | Android cache partition |
153
|\2. MODEM| | | mmcblk0p8 | modem firmware partition |
154
|\2. FACTORYFS| | | mmcblk0p9 | Android system partition |
155
|\2. DATAFS| | | mmcblk0p10 | Android application data |
156
|\2. UMS | | | mmcblk0p11 | user data (music, pictures, etc) |
157 35 Denis 'GNUtoo' Carikli
|\2. HIDDEN | | | mmcblk0p12 | contains some data, and Samsung APK |
158
159
This was constructed from the PIT, TODO: check the partitions content
160 46 Denis 'GNUtoo' Carikli
161
h3. MLO
162 53 Hpag Seddy
163 46 Denis 'GNUtoo' Carikli
On a I9100G_CHN_CHN with Android 2.3.6 with the OMAP reported as being in HS mode we have:
164
<pre>
165
--- Entry #0 ---
166
Binary Type: 0 (AP)
167
Device Type: 2 (MMC)
168
Identifier: 1
169
Attributes: 0 (Read-Only)
170
Update Attributes: 0
171
Partition Block Size/Offset: 0
172
Partition Block Count: 0
173
File Offset (Obsolete): 0
174
File Size (Obsolete): 0
175
Partition Name: X-loader
176
Flash Filename: MLO
177
FOTA Filename: 
178
</pre>
179
180
This doesn't give any indication of where is MLO, but it's clearly visible with an hexadecimal editor like vbindiff.
181 48 Denis 'GNUtoo' Carikli
182 46 Denis 'GNUtoo' Carikli
|_. Offset from mmcblk0 |_. size |_. comments |
183
| 0x20000 (256k) | 256k | MLO + potentially other stuff |
184
| 0x40000 (512k) | 256k | MLO + potentially less other stuff |
185
186 47 Denis 'GNUtoo' Carikli
187 46 Denis 'GNUtoo' Carikli
Though SBL1 and SBL2 have location and size reported my the bootloader with heimdall print-pit:
188
<pre>
189
--- Entry #2 ---
190
Binary Type: 0 (AP)
191
Device Type: 2 (MMC)
192
Identifier: 2
193
Attributes: 0 (Read-Only)
194
Update Attributes: 0
195
Partition Block Size/Offset: 49152
196
Partition Block Count: 4096
197
File Offset (Obsolete): 0
198
File Size (Obsolete): 0
199
Partition Name: SBL1
200
Flash Filename: Sbl.bin
201
FOTA Filename: 
202
</pre>
203
204
<pre>
205
--- Entry #3 ---
206
Binary Type: 0 (AP)
207
Device Type: 2 (MMC)
208
Identifier: 3
209
Attributes: 0 (Read-Only)
210
Update Attributes: 0
211
Partition Block Size/Offset: 53248
212
Partition Block Count: 4096
213
File Offset (Obsolete): 0
214
File Size (Obsolete): 0
215
Partition Name: SBL2
216
Flash Filename: 
217
FOTA Filename: 
218
</pre>
219 27 Denis 'GNUtoo' Carikli
220
h2. Recovery
221
222
The device is not supported by TWRP, but it was supported by cyanogenmod recoveries:
223
224 1 Denis 'GNUtoo' Carikli
https://web.archive.org/web/20190328070606/http://download.cyanogenmod.org:80/?device=i9100g
225 41 Denis 'GNUtoo' Carikli
226 31 Denis 'GNUtoo' Carikli
That recovery is a zImage. Note that this recovery may not be FSDG compliant, so the first step would be to make a Replicant recovery for this device/
227 43 Denis 'GNUtoo' Carikli
228
h2. CyanogenMod support and stock Android with the version that has a signed bootloader
229
230
According to the "I9100G CyanogenMod installation instructions":https://web.archive.org/web/20161224202727/https://wiki.cyanogenmod.org/w/Install_CM_for_i9100g , "Users running Android 2.3 on their I9100G MUST first upgrade to stock Android 4.x before installing CyanogenMod, or the device won't boot into the system due to it relying on a newer bootloader. A 4.1 bootloader is recommended."
231 1 Denis 'GNUtoo' Carikli
232
However this approach has several issues.
233 43 Denis 'GNUtoo' Carikli
234
The update doesn't work anymore. 
235
236
It also requires you to put a SIM card in the device, which results in privacy issues.
237 1 Denis 'GNUtoo' Carikli
238 43 Denis 'GNUtoo' Carikli
In addition to that, it requires you to give the device a network connection, knowing that the device is running a proprietary Android distribution.
239
240
Once you do that it still fails with "Processing failed".
241
242
Right before the failure you can see "Signup for a Samsung account" on the top of the window with "Terms and conditions".
243
244
So it probably tries to access some page like https://bada.com/contents/deviceterms/china/208.txt which doesn't exist anymore, and it probably does that to show terms and conditions which were probably unacceptable. 
245
246 44 Denis 'GNUtoo' Carikli
They might also have legally prevented you to work on some part of Replicant if you agreed to them, depending on the country you are located in or you intend to travel to.
247
248
This is most probably not an issue with the versions that don't have a signed bootloader as the first stage bootloader could simply be replaced by a free software xloader.
249 43 Denis 'GNUtoo' Carikli
250
h2. Bootloaders
251 5 Denis 'GNUtoo' Carikli
252 60 Denis 'GNUtoo' Carikli
See [[GTI9100GBootloaderFreedom]] and [[GTI9100GBootloaderInterface]]
253 59 Denis 'GNUtoo' Carikli
254 60 Denis 'GNUtoo' Carikli
h2. Hardware
255 15 Denis 'GNUtoo' Carikli
256 1 Denis 'GNUtoo' Carikli
257 76 Denis 'GNUtoo' Carikli
|_. Component |_. Name |_. Source |_. Status |
258
| SoC | OMAP4430 | TODO | TODO |
259
| GPU | OMAP => PowerVR | ? | Offuscated Linux pipe driver, proprietary userspace |
260 80 Hpag Seddy
| Audio Codec | TWL6040A2 | ? | ? |
261 78 Denis 'GNUtoo' Carikli
| Modem | XMM6260 | "Linux kernel":https://github.com/LineageOS/android_kernel_samsung_t1/blob/10ca03795f659f6f1fa995e8c300a08c3a133354/arch/arm/configs/cyanogenmod_i9100g_defconfig#L1107 | TODO: Add support for the I9100G libsamsung-ipc and "BoardConfig.mk":https://github.com/LineageOS/android_device_samsung_i9100g/blob/cm-10.1-staging/BoardConfig.mk#L36 |
262 76 Denis 'GNUtoo' Carikli
| Wi-Fi | ? | ? | ? |
263
| Bluetooth | ? | ? | ? |
264
| NFC | ? | ? | Linux kernel support |
265
| GPS | ? | ? | ? |
266
| Accelerometer | ? | ? | ? |
267
| Compass | ? | ? | ? |
268
| Light | ? | ? | |
269
| Proximity | ? | ? | ? |
270
| FM Radio? | ? | ? | ? |
271
| Camera (back) | ? | ? | ? |
272
| Camera (front?) | ? | ? | ? |
273
| Touchscreen | ? | ? | ? |
274
| Display | Same than Galaxy SII? | ? | ? |
275 1 Denis 'GNUtoo' Carikli
| Power Management IC (PMIC) | TWL something | ? | ? |
276 78 Denis 'GNUtoo' Carikli
277
278 1 Denis 'GNUtoo' Carikli
279 76 Denis 'GNUtoo' Carikli
h3. Sumary
280 75 Denis 'GNUtoo' Carikli
281 67 Denis 'GNUtoo' Carikli
As far is we get from what we've seen on the motherboard itself, here are our guesses about chips and what they do:
282 53 Hpag Seddy
283 55 Hpag Seddy
* 6030B1A5 21ZEDL9G2 G1 --- Power IC based on sellers on the web
284
* TWL6040A2 22AH9SW G2 --- Audio codec made by TI https://www.alldatasheet.com/datasheet-pdf/pdf/862981/TI1/TWL6040A2.html
285 75 Denis 'GNUtoo' Carikli
* Modem: "XMM6260":https://github.com/LineageOS/android_kernel_samsung_t1/blob/10ca03795f659f6f1fa995e8c300a08c3a133354/arch/arm/configs/cyanogenmod_i9100g_defconfig#L1107
286 55 Hpag Seddy
* SAMSUNG 210 KMVYLOOOLM-B503 --- EMMC Chip 16GB based on this forum thread https://www.mcrf.ru/forum/showthread.php?t=40277
287 5 Denis 'GNUtoo' Carikli
* K3PE7E700D-XGC1 --- DDR DRAM chip, most likely 1GB
288 1 Denis 'GNUtoo' Carikli
289 67 Denis 'GNUtoo' Carikli
h3. PCB details
290 65 Denis 'GNUtoo' Carikli
291 79 Denis 'GNUtoo' Carikli
* https://archive.org/details/GT-I9100G_PCB_BACK
292
293 66 Denis 'GNUtoo' Carikli
Chips markings:
294
295
<pre>
296
Ti logo
297
6030B1A5
298
21ZEDL9G2
299
G1
300
</pre>
301
302
<pre>
303
TI logo
304
TWL6040A2
305
22AH9SW G2
306
G1
307
</pre>
308
309
I'm not sure about G1, maybe it's Gi or G|
310
311
Modem:
312
<pre>
313
I9811
314
V 1.0B
315
XG626
316
H1207
317
</pre>
318
And on the right side, there is F2076538 written.
319
320
321
There is a small battery soldered. That might be interesting if it's able to keep the correct time when the battery is removed. 
322
If not you need to run disable-modem.sh then to turn off the phone and remove the battery, and then put on the battery, set the correct time, and then enable-modem.sh
323
324
<pre>
325
SAMSUNG 210
326
K3PF7E700 XGC1
327
GKB2609G
328
</pre>
329
330
There are with many capacitors around
331
332
Links about similar chips:
333
* https://www.kynix.com/Detail/1185174/K3PE7E700D-XGC2.html
334
* https://memorylink.samsung.com/ecomobile/mem/ecomobile/product/productDetail.do?topMenu=P&subMenu=mobileDram&appNo=&appLabel=&partNo=K3PE7E700M-XGC1&partSetNo=LPDDR2
335
*  https://commons.wikimedia.org/wiki/File:Samsung_Galaxy_Tab_2_10.1_-_Samsung_K3PE7E700M-XGC1-3956.jpg Interesting
336
337
The links talk about things like LPDDR2. The links are not for the same chip but, for the second part number, the reference is pretty close ( K3PE7E700M-XGC1 )
338
339
The third link has a description with "Mobile DRAM LPDDR2" and "Package: FBGA"
340
341 65 Denis 'GNUtoo' Carikli
FBGA is "Fine Ball Grid Array based on ball grid array technology. It has thinner contacts and is mainly used in system-on-a-chip designs" "according to wikipedia":https://en.wikipedia.org/wiki/Ball%20grid%20array
342
343 69 Denis 'GNUtoo' Carikli
SOC (and eMMC?):
344 68 Denis 'GNUtoo' Carikli
<pre>
345
SAMSUNG 210
346
KMVYLOOOLM-B503
347 1 Denis 'GNUtoo' Carikli
CrBM60E1
348
Maybe MDL5 15
349 69 Denis 'GNUtoo' Carikli
</pre>
350 68 Denis 'GNUtoo' Carikli
351 69 Denis 'GNUtoo' Carikli
I'm not 100% sure of the last line (Maybe MDL5 15) as there are stuff printed with a blue ink on top (040321)
352 68 Denis 'GNUtoo' Carikli
353
* Some links talk about "CPU":
354
** https://sourcing.1688.com/buyoffer/detail.htm?entrySource=&id=20446920388
355
** http://www.cn5135.com/ProductDetail-1069992.html
356
* Other eMMC: http://forum.gsmhosting.com/vbb/f672/direct-emmc-connection-failed-pinout-wrong-1807131/
357
358 5 Denis 'GNUtoo' Carikli
h2. Links
359 26 Denis 'GNUtoo' Carikli
360 8 Denis 'GNUtoo' Carikli
* "Official support for CyanogenMod":https://web.archive.org/web/20161225042527/https://wiki.cyanogenmod.org/w/I9100g_Info
361 9 Denis 'GNUtoo' Carikli
* "Unofficial LineageOS 13 for the I9100G":https://forum.xda-developers.com/galaxy-s2/development/rom-lineageos-13-0-t3620246
362 12 Denis 'GNUtoo' Carikli
** "Source code for it":https://github.com/xdaamg
363 11 Denis 'GNUtoo' Carikli
* Infos on the bootloader: https://forum.xda-developers.com/galaxy-s2/development/guide-repair-totally-sleep-dead-boot-t1701471
364 13 Denis 'GNUtoo' Carikli
* "Infos on xloader and how to make a serial port adapter":https://blog.the-leviathan.ch/?p=408
365 1 Denis 'GNUtoo' Carikli
* https://forum.xda-developers.com/showpost.php?p=65159962&postcount=276