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Cannot upgrade app because of signature conflict error

Please bid only if you have experience.

I have an android app and source code.

I installed app on my phone now.

Also Android studio was reinstalled because I have reinstalled operating system.

When I build through new Android studio and to upgrade the app , It appears signature conflict problem.

I cannot reinstall app because I have 900images with remark on this app on my phone.

I must upgrade to keep DB.

Please help me with this.

Thank you

Skills: Android, Mobile App Development, MySQL, PHP, Java

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About the Employer:
( 3 reviews ) Dandong, China

Project ID: #23410485

12 freelancers are bidding on average $116 for this job

OutsourceMan

Greetings! We would love to have the opportunity to discuss your project with you. Surely, we are ready to help you to fix the signature conflict error issue in the app. - Will be upgrade to keep the DB. We would r More

$155 USD in 5 days
(386 Reviews)
8.3
om26er

Hi, what type of signature conflict problem are you facing? Are you trying to sign the app in order to submit the app? I need more details. Let's chat!

$150 USD in 1 day
(283 Reviews)
7.9
$140 USD in 7 days
(52 Reviews)
5.9
SimpleMaker815

Hello. I can definitely help you out. I have checked your job description in detail and understand what you wanted in this project. No Problem. I would love to hop on a call to discuss the project more. I'm sure we ca More

$140 USD in 7 days
(14 Reviews)
5.8
astonhill

Hi there, I have checked the initial requirement in your post, and have 7+years of experience on PHP, Wordpress, Wix, Shopify and Ecommerce website. I would like to hear more about the project. Along with that, if you’ More

$50 USD in 3 days
(15 Reviews)
4.4
bogdanlonchuk

Hello, I can fix your Android signature issue. I have been already worked with Android Studio and Java/Kotlin languages, so I know how to do your task. It will takes only 1 day for me. Can start today. I am waiting fo More

$90 USD in 1 day
(49 Reviews)
4.4
dharmpalb279

Hi There! I have more than 8-year experience in this field. Would you please share more details about the project? I am really interested to work with you for long. Best Regards, Abhishek

$140 USD in 7 days
(9 Reviews)
3.2
alekseypankra

⭐⭐⭐ ⭐⭐⭐ ⭐⭐⭐ ⭐⭐⭐ ⭐⭐⭐ ⭐⭐⭐ Please nurse your precious time like gold!!! I'm an experienced mobile developer. I'm very interested in your project. I tried a similar project before. My main goal is "Best Service". My sk More

$140 USD in 7 days
(9 Reviews)
3.2
ChetanPatel2609

Hello There, I have seen your requirement and I am interested in your job. I am ready now to work on your app. I have 5+ years of experience in Android application development. I am new in Freelancer but have a prov More

$45 USD in 1 day
(1 Review)
1.7
TalentedDev1106

Hello, How are you? Thank you for your job posting. I am senior mobile app developer. I understood your problem. I will try for you. Please reply me. Thanks.

$50 USD in 3 days
(0 Reviews)
0.0
hunedmalvi

Hello Greetings..!! We can build apps as per your requirements. We have 7 + years of experience in Mobile & Web application development, We are a team of app designer and developer and we work on Android SDK, MySQ More

$140 USD in 7 days
(0 Reviews)
0.0
shafkathaider09

Dear Employer, I am a full stack developer, I have worked many Application and live on application store, we will discuss about project feature and I will give you the best work of mine in estimate time duration. More

$150 USD in 3 days
(0 Reviews)
0.0