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[Moto G] Downgrade Lolipop 5.0 ke KitKat 4.4.4

Setelah kemarin sukses melakukan upgrade ke Lolipop 5.0 dengan cara menggunakan retail Brazil bisa dilihat disini. Secara tidak sengaja saya mengutak-atik dan melakukan patch sana sini alhasil play store saya jadi error dan sering crash. Terlintas ide untuk melakukan insalasi OTA kembali, namun sayang, instalasi OTA sepertinya hanya dalam kondisi system 4.4.4, sedangkan saya sudah berada pada 5.0. 

Langkah yang saya ambil adalah dengan melakukan downgrade dulu ke 4.4.4 Brazil, kemudian akan saya upgrade OTA lagi ke 5.0. Prosesnya cukup menegangkan untuk downgrade ke 4.4.4, dan sudah ada korbanya di forum - forum yaitu nge-BRICK. Ketika sudah dalam kondisi ngebrick seperti ini, harus menunggu update resmi dari Motorola untuk membenahi bootloader yang corrupt. Efek samping downgrade yang sudah banyak diketahui adalah Flicker pada layar ketika pertama booting. Bisa diperbaiki dengan mengunci layar, kemudian buka kembali. 

Dengan pasrah dan penuh keberanian, saya akhirnya mencoba untuk melakukan downgrade. Untuk melakukan downgrade, caranya hampir sama dengan melakukan instalasi Brazil 4.4.4 yang ada pada link diatas. Namun ada beberapa langkah yang dihapus demi kompatibility dengan Lolipop. 
  1. Masuk ke bootloader fastboot
  2. Tancapkan USB dengan PC (asumsi semua driver sudah siap)
  3. Ketikkan perintah fastboot dibawah ini, fastboot atau mfastboot menyesuaikan
    4. fastboot flash boot boot.img
    fastboot flash recovery recovery.img
    fastboot flash system system.img_sparsechunk.0
    fastboot flash system system.img_sparsechunk.1
    fastboot flash system system.img_sparsechunk.2
    fastboot flash modem NON-HLOS.bin
    fastboot erase modemst1
    fastboot erase modemst2
    fastboot flash fsg fsg.mbn
    fastboot erase cache
    fastboot erase userdata
    fastboot reboot
  4. Ketika HH sedang reboot, berdoalah semoga sukses :)
  5. Seketika sedang booting, biasanya terdapat garis flicker dari atas kebawah. Cara menghilangkanya adalah dengan mengunci layar dan membukanya kembali dengan jeda 5 detik-an.
Kembali ke KitKat 4.4.4 Retail Brazil

Cara tersebut sudah saya coba di XT1033, jika anda ingin mencobanya, Do With Your Own Risk !
Labels:

Comments

  1. NUGROHO ARIE MUKTI21 December 2014 at 07:08

    Mantap gan !!!!

    ReplyDelete
  2. Ediyukes9 February 2015 at 20:58

    layarnya kok ripple gt gan

    ReplyDelete
  3. Ediyukes9 February 2015 at 20:59

    layarnya kok ripple gt gan

    ReplyDelete
    Replies
    1. felangga9 February 2015 at 23:24

      Memang begitu gan.
      Untuk menghilangkan, tekan power untuk lock trus buka lagi.
      Tapi kumat ketika restart hp

      Delete
  4. Unknown8 July 2015 at 09:53

    Masih work kah gan

    ReplyDelete
    Replies
    1. felangga8 July 2015 at 10:43

      Masih gan,
      Tapi mohon hati-hati kalau salah langkah bisa brick.
      Ada efek samping juga kalau mau downgrade dari lolipop, ripple di layar. Tapi bisa disembuhkan dengan lock screen dan buka kembali

      Delete

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