Upgraded K800i to K810, unable to unlock it now

Hello,

I followed the tutorial in this forum to flash my K800i to K810. It works ok with they SIM from the original provider, but won't accept any SIM from another provider. I tried following the tutorials in here, but for some reason it just won't work. Everytime I try to flash the vkp patch, it gives me the error "can't build loaders chain". I try to flash via USB.

I've used these files to convert the phone to K810

K810_R8BA024_FS_EUROPE_2_RED53.fbn
K810_R8BA024_MAIN_GENERIC_SM_RED53.mbn

Here's the Identify log


ChipID:9900,EMP protocol:0301
PHONE IS RED RETAIL PRODUCT
FLASH CID detected:53
Speed:921600
Flash ID check:2019
Flash props sent ok
OTP LOCKED:1 CID:51 PAF:1 IMEI:35xxxxxxxxxxxxx CERT:RED
FLASH CID:53 COLOR:RED

Model:K810i
Brand:Sony Ericsson
MAPP CXC article: R8BA024 prgCXC1250811_GENERIC_SM
MAPP CXC version: R8BA024
Language Package:EUROPE_2
CDA article: CDA102568/11
CDA version: R8A
Default article: cxc1250813
Default version: R8BA024

Network LOCKED
Operator: MULTIPLE

Elapsed:16 secs.

Thanks in advance.

The simpliest way is OMNIUS

Thank you for pointing me to it. I've just tried it, I got an error. I've sent the Omnius team a message about it. Any idea on why I keep getting errors? Should I use a CID52 firmware instead?

Code:

---

Action journal
20:57:04  Unlock network lock by reset
20:57:04  Unlocks the phone network lock by reset (up to OTP CID 53).
20:57:04  Operating system: Microsoft Windows XP Professional Service Pack 3 (build 2600)
20:57:04  Application version: 0.01.2019 (beta)
20:57:04 . The action name is 'Unlock'
20:57:04  Selected phone type: K810
20:57:04  Selected connection method: USB ROM
20:57:04 i Instructions
20:57:04 i 1. Make sure the phone battery is charged to at least 50%.
20:57:04 i 2. Switch off the phone!
20:57:04 i 3. Remove the phone battery and wait at least 5 seconds before reinserting it!
20:57:04 i 4. Press and hold buttons 2 and 5, then connect the cable to the phone!
20:57:05 . The action started waiting for the user
20:57:33 . The action finished waiting for the user
20:57:33  Connecting via Generic EMP USB Flash Device (USB1)…
20:57:33  Device driver version: 2.2.0.5
20:57:33  Entering baseband CPU service mode...
20:57:33  Detected chipset: DB2020 '9900
20:57:33  Boot mode: ROM
20:57:33  Sending loader...
20:58:03 e Failed!
20:58:03 . The action entered shutdown phase
20:58:03 . The action reported failure

Error code
# 2ADED32B590CBF72

Error details
---
6F 88 1D 35 58 0C 00 FF FA EF 64 E7 BE 8F 78 5A
76 26 C2 FA 86 63 F0 BB E6 C3 1B 26 1C 64 98 F7
2E 13 F0 4A BD 15 8E 80 1A 7F 84 67 16 05 29 1B
30 08 8C 45 5A 37 82 B1 B9 ED 3A FC 92 25 B8 63
70 4B 31 57 98 EC 40 C1 3A D5 BB A3 A1 DA 66 F8
82 77 54 AF 83 08 F2 20 64 30 B4 7D 8E 35 D8 37
12 59 BC AB AA AD 0E 72 5A C1 3C 23 E2 94 18 87
A2 29 33 18 48 D1 90 D1 EA 61 D4 23 AE 61 12 57
08 42
---

---

CID53？ how to update？

Quote:

---

Originally Posted by zhl

CID53？ how to update？

---

Read here: Flash K800 CID53 with K810 software CID53 (for begginers)