Google Nexus S aktualizace na Android 4.0.4 (Ubuntu)

Google Nexus S mel smolny zacatek s updatem na ICS (v 4.0.3). OTA aktualizace byla pozastavena, protoze se ukazalo, ze nekterym uzivatelum update zpusobil vazne problemy. Presto bylo mozne provest aktualizaci rucne. Protoze ale verze 4.0.3 opravdu obsahovala pomerne dost chyb, rozhodl se nejeden uzivatel prevest sveho Nexuse zpet na stabilni a funkcni verzi 2.3.6.
Po vyreseni vsech problemu (zdanlive) se opet Google rozhodl pro rozeslani OTA, nicmene v tomto pripade to jiz byla verze 4.0.4. Tahle mala rosada, zpusobila opet radu problemu. Po uvolneni OTA se totiz vsem uzivatelum v danych regionech automaticky do mobilu stahl aktualizacni balicek na verzi 4.0.4. V zapeti nastaly dva problemy: uzivatele ihned po restrtu zjistili, ze aktualizace nebude tak snadna, protoze instalace skoncila s chybou a dalsi problem s nemoznosti vypnuti OTA aktualizaci, coz melo za nasledek, ze se cca 1-2x mesicne stahla aktualizace a doslova otravovala uzivateli zivot s zadosti o restart a instalaci.

OTA update na 4.0.4, instalace konci chybou:

Finding update package...
Openning update package...
Veryfing update package...
Installing update...
Veryfing current system...
assert failed: apply_patch_check("/system/vendor/lib/libsec-ril.so"...
E:Error in /cache...
(status 7)
Instalation aborted.

Jediny zpusob jak se dostat k cilenemu systemu, je nutnost absolhovat update z 2.3.6 na 4.0.3 a az pote na 4.0.4.

Pozadavky:
ADB (fastboot)
– stock ROM (4.0.3 a 4.0.4)
– bootloader (soucast balicku s ROM)

Pred zahajenim jakekoliv cinnosti je silne doporuceno zazalohovat si vsechny data z telefonu! Pozor, rucni instalace muze zpusobit vazne poskozeni telefonu tzv. brick!

Instalace z 2.3.6 na 4.0.3
– Nahrat balicek (.zip) s verzi 4.0.3 do sdcard v telefonu
– Vypnout telefon
– Vstup do bootloader (drzet bocni klavesu pro zesileni reproduktoru + zmacknout a podrzet tlacitko pro spusteni)
– Ve verzi 2.3.6 by mel byt bootloader odemknuty, zvolime tedy v menu polozku Recovery
– Pravdepodobne se na displeji objevi logo droida s chybou (zmackneme bocni klavesu pro zesileni reproduktoru + zmacknout a podrzet tlacitko pro spusteni)
– Dostaneme se do konzole, kde zvolime wipe /factory settings a wipe /cache
– Dale update from sdcard, kde vybereme balicek s ICS v4.0.3 a nechame system nainstalovat

Instalace z 4.0.3 na 4.0.4
Bootloader bude nyni pravdepodobne prehrany a zamknuty, nebo nebude funkcni Recovery. Zde prichazi na radu pouziti ADB z Android SDK. Instalace SDK je popsana napriklad zde. V adresari s SDK najdeme ve slozce platform-tools najdeme utilitu fastboot.

– Spustime opet telefon a vstoupime do bootloaderu
– Pripojime telefon pomoci USB k PC
– Spustime fastboot: ./fastboot devices (vypise SN pripojenych zarizenich)
– V pripade, ze je booloader zamknuty, tak pouzijeme prikaz pro odemknuti: ./fastboot oem unlock (pozor, smaze vsechny data na sdcard!)
– Pokracujeme rozbalenim balicku (.zip) s verzi ICS 4.0.4 do adresare s platform-tools.

Pokracujeme dale v instalaci pomoci fastboot:
./fastboot flash bootloader bootloader-crespo-i9020xxkl1.img
./fastboot reboot-bootloader (pockat az bootloader znovu najede)
./fastboot flash radio radio-crespo-i9020xxki1.img
./fastboot reboot-bootloader (pockat az bootloader znovu najede)
./fastboot -w update image-soju-imm76d.zip (pockat az se dokonci instalace)
./fastboot oem lock (provedeme zamceni bootloaderu)

Doporucuji pred zahanim pouzivani telefonu jeste provest wipe /factory settings a wipe /cache. Nyni uz staci telefon spustit standardnim zpusobem, stahnout vsechny zalohovane data z Google a doinstalovat vsechny aplikace z Marketu.

Odkazy:
Manualni instalace…
Androidforum.cz/…
Prehled vsech oficialnich ROM pro i9023

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