[Q] Nexus 5 fully wiped (system, data...), bootloader Locked
I am new on Android, the Nexus 5 is my first android device. I freshly come from a 5 years old iPhone 3G.
2 Weeks ago I unlocked the bootloader of my device and rooted it following the tutorials provided by the XDA community without any problem.
Today, I saw that the OTA to upgrade from the Android version 4.4 to the version 4.4.2 was available directly from the device.
Since I did not want this update to be a problem with my rooted device, I downloaded the following apps: BootUnlocker for Nexus Devices and OTA RootKeeper (I do realize using RootKeeper was stupid since anyway the last update was released on July 25, 3 months before KitKat...). But anyway, this is what I did. I used those apps to Lock my Bootloader and unRoot my phone, thinking that this will reduce the chances of potential conflict with the OTA update.
Afterward, I downloaded and tried to instal the OTA directly from the Nexus 5. It ends up that I got stuck on the recovery menu. It was then impossible to get back on android and I did not know what to do.
This is where I did something totally crazy. Usually I spend time reading tutorials and finding information before doing anything that I do not fully understand. But at this stage I simply thought that the update could not properly instal due to the root. So I went on Advanced Wipe, I ticked all the options (data, system, Cash, Dalvik... all of them), and wiped the device.
As a result, my Nexus 5 has currently a Locked Bootloader and no OS installed. This means that I cannot activate the developer menu (no OS) to tick the option USB debugging. Thus, I cannot unlock my bootloader and in consequence I cannot instal the factory image and get back to stock.
Please, If you can give me some advice, explain me how can I unlock the bootloader in these conditions. Let me know... I really don't know what to do now.
PS: sorry my english is not perfect but I do hope you clearly understand my problem.